Objects & Object Complements

You've just handed in a piece of writing — maybe a story, maybe an essay — and it comes back with a note in the margin: "IO?" You stare at it. You wrote something perfectly sensible, something like I gave my best friend a bracelet I made, and now there's a small code you don't understand attached to your own sentence.

Here's the thing. That "IO?" isn't a criticism. It's a question about a job one of your words is doing — and once you know what job it is, you'll spot it every time, in seconds. Most sentences you write have a subject and a verb (you'll already have met those in Subjects and Predicates), but what comes after the verb is often doing more than one thing at once. This article is about untangling those jobs: the direct object, the indirect object, and something less common but very useful to know, the object complement. We'll also make sure you can tell all three apart from something that looks similar but isn't — a word tucked inside a prepositional phrase.

Nobody's born knowing this. By the time you finish, that margin note won't be a mystery. It'll just be a question you can answer without blinking.

Before you read on, here's where we're heading. By the end of this article, you'll be able to: - Spot a direct object using the simple "what?" or "whom?" test. - Spot an indirect object using the "to whom?" or "for whom?" test — and know it always comes without a preposition in front of it. - Recognise an object complement — a word that renames or describes the direct object rather than being a separate thing. - Tell all three apart from a plain prepositional phrase, so you don't mislabel to the shop or for my sister as an object.

Beginner (Foundation)

Let's start with the object you'll meet most often: the direct object. This is the thing (or person) that receives the action of the verb — the thing the verb is actually done to. To find it, ask what? or whom? straight after the verb.

• Jamal kicked the ball. → Kicked what? → the ball.
• Priya finished her homework. → Finished what? → her homework.
• The dog bit the postman. → Bit whom? → the postman.

That's it. The direct object answers the question of what got acted on.

Not every sentence has one, and that's completely fine — some verbs are happy standing alone.

• She runs. (No direct object — nothing receives the running.)
• The baby cried. (Same thing — nothing is "cried".)

Now, some verbs bring in a second character: someone the action is done to or for. Look at this:

The teacher gave Mia a ticket.

Ask the direct object question first, always: gave what? → a ticket. That's your direct object. Now ask: gave the ticket to whom? → Mia. That's your indirect object — the person who receives the direct object.

More examples:

• Dad bought me a snack. → bought what? → a snack (direct object). bought it for whom? → me (indirect object).
• I wrote Sam a note. → wrote what? → a note (direct object). wrote it to whom? → Sam (indirect object).

Picture it like this: Subject does verb to direct object, and hands it to/for indirect object. The indirect object sits between the verb and the direct object, with no "to" or "for" written in front of it — that's the tell you'll refine in the next section.

Now for the third player, which behaves quite differently. Sometimes a word after the object doesn't receive anything at all — it just renames or describes the object.

They elected Maria captain.

Elected whom? → Maria — that's the direct object. But captain isn't a second thing being acted on. It tells us what Maria became. That's an object complement — it completes the meaning of the object by renaming or describing it.

• The joke made him angry. → made whom? → him (direct object). Angry describes how he ended up — object complement.
• We painted the walls blue. → painted what? → the walls (direct object). Blue describes the new state of the walls — object complement.

The difference to hold onto: an indirect object is a separate person or thing benefiting from the action. An object complement is the same thing as the direct object, just relabelled.

Common Mistake: Calling every word after a verb "the object". Sometimes the second word is an object complement, not a second object at all. In They painted the walls blue, the walls is the direct object and blue is the object complement — not two objects.

Quick recap: - A direct object answers "what?" or "whom?" right after the verb. - An indirect object answers "to whom?" or "for whom?" and sits before the direct object. - An object complement renames or describes the direct object — it isn't a separate thing. - Not every sentence has an object at all, and that's normal.

Intermediate (Development)

Now let's sharpen the tools, because this is exactly where sentences start looking crowded and confusing.

The to/for swap test. Most indirect objects can be rewritten as a "to/for + noun" phrase after the direct object, without changing the meaning:

Mum sent Alex a message. → Mum sent a message to Alex. She baked her dad a cake. → She baked a cake for her dad.

Both versions mean the same thing. But something important happens grammatically when you make that swap: in the second version, to Alex and for her dad are no longer indirect objects. They've become prepositional phrases, and Alex / her dad are now objects of the preposition, not objects of the verb.

This is the confusion that trips up almost everyone at some point, so let's be precise about it:

• Indirect object: sits between the verb and the direct object, no preposition in front of it. I wrote Sam a letter.
• Object of a preposition: sits inside a phrase starting with to, for, with, at, and so on, usually after the direct object. I wrote a letter to Sam.

Full detail on how prepositional phrases work lives back in Pillar 2 — that's the place to go if this feels shaky, because we're not re-teaching it here. What matters for this article is the boundary line: if there's a preposition sitting in front of the word, it isn't an indirect object, no matter how "recipient-like" the meaning feels.

Common Mistake: Calling Sam an indirect object in I spoke to Sam. There's no direct object in that sentence at all — spoke doesn't need one — so there can't be an indirect object either. To Sam is simply a prepositional phrase.

Here's a genuinely useful trick for spotting indirect objects with confidence: verbs like give, send, tell, show, buy, teach, and make almost always invite one.

• He gave me a present. (indirect: me; direct: a present)
• She teaches the class Spanish. (indirect: the class; direct: Spanish)

But not every verb that could theoretically take a recipient actually allows the double-object shape. Explain, for instance, refuses it entirely:

I explained the rules to her. ✓ I explained her the rules. ✗

There's no clever logic here — it's simply a fact about that particular verb, and it's worth knowing so a sentence that sounds "slightly foreign" doesn't slip past you unnoticed.

Object complements: making sure that's what you've got. To qualify, a word or phrase must (1) come right after the direct object, and (2) rename or describe that object rather than introduce something new. A neat test: try slipping in to be between the object and the word in question.

• They elected Maria captain. → They elected Maria to be captain. (Still makes sense — object complement confirmed.)
• Mrs Aluko gave the class a worksheet. → Mrs Aluko gave the class to be a worksheet. (Nonsense — so a worksheet is not an object complement; it's a direct object, and the class is the indirect object.)

That "to be" test is your quickest way to stop mixing up a genuine second object with a complement.

Pro-Tip: Whenever two nouns stack up after a verb and you're unsure what's going on, run the tests in order: first ask "what?" to nail the direct object, then check whether the other word answers "to/for whom?" (indirect object) or passes the "to be" test (object complement). The two almost never both succeed on the same word.

Quick recap: - You can usually rewrite an indirect object as "to/for + noun" after the direct object — but once you do, it's a prepositional phrase, not an object. - No preposition in front of a word between verb and direct object is your sign of a genuine indirect object. - The "to be" insertion test confirms an object complement. - Some verbs (explain, describe, admit) simply don't allow the double-object pattern — learn them as exceptions.

Advanced (Mastery)

If you're still with me, you're ready for the fiddly bits — the sentences that make even confident writers pause.

When there's genuinely no indirect object. An indirect object only exists when three things line up: the verb's meaning allows a recipient, there's a direct object present, and the "recipient" word sits before that direct object with no preposition. Miss any one of those and you haven't got an indirect object at all.

I emailed my teacher.

Ask "emailed what?" — nothing answers. Ask "emailed whom?" — my teacher. So my teacher is a direct object, not an indirect one. There's only one object in that sentence, however recipient-like my teacher sounds.

Genuine ambiguity. Some sentences honestly support two different readings, and that's not a flaw in the grammar — it's a real feature of English. Take the old joke:

Call me a taxi.

One reading: call (verb) + me (indirect object) + a taxi (direct object) — "phone up a taxi for me." The other, jokier reading: call + me (direct object) + a taxi (object complement) — "from now on, refer to me as a taxi." That's the entire punchline of "OK, you're a taxi" — the joke only works because both parses are legitimate. Once you can see this, you'll notice similar double structures elsewhere: Name me a successor could mean "tell me who it is" (indirect + direct object) or, stretched oddly, "designate me as the successor" (direct object + object complement).

Object complements can be whole phrases, and other material can slide in between. Don't assume the complement has to be a single word glued to the object with nothing in between:

We considered the plan completely unworkable.

Considered what? → the plan (direct object). Completely unworkable — the whole phrase — is the object complement.

I found the maths problem, despite the hint, incredibly hard.

Strip out the interrupting phrase despite the hint and the skeleton is: found what? → the maths problem; incredibly hard → object complement.

Common Mistake: Assuming an object complement must sit immediately next to the object with nothing in between. In real writing, extra phrases often slide in. Pull them out mentally and check the underlying pattern: verb + object + description/new name.

Object complements come in several shapes:

• a noun: They elected her chairperson.
• a noun phrase: We chose her team leader.
• an adjective: The news made him sad.
• an adjective phrase: I found the film too long.

Object complements and their neighbours. It's worth knowing what an object complement isn't, because two nearby structures look similar on the page.

An appositive renames a noun too, but it's set off with commas and can usually be lifted straight out without wrecking the sentence: Musa, our new captain, gave a speech. Drop "our new captain" and the sentence still stands. Compare that to They elected Musa captain — drop captain and you've lost the whole point of the sentence. No commas, and it can't be removed. (Full treatment in Appositives.)

A subject complement looks almost identical in shape but describes the subject, not the object, and follows a linking verb rather than an action verb: She seems tired (subject complement — describes "she"). Compare They made her tired (object complement — describes "her", the object). Same shape, different target. (Full treatment in Subject Complements.)

Style and register. In everyday speech, the double-object pattern feels natural and quick: I'll text you the details. In more formal writing — essays, reports — the to/for pattern often reads more carefully: I will text the details to you. Neither is wrong; it's a question of tone. Object complements themselves tend to feel a shade formal, especially with verbs like consider: The committee considered the proposal unacceptable is exactly the kind of pattern you'll meet in exam texts and official documents.

Pro-Tip: For exams and formal school writing, the to/for pattern (explain the answer to the reader) is always safe. For stories and dialogue, the double-object pattern needs a little more care, because — as you now know — not every verb allows it.

Quick recap: - A direct object can exist without any indirect object at all. - Some sentences are genuinely ambiguous between an indirect-object reading and an object-complement reading — context decides, not the grammar alone. - Object complements can be phrases, and other words can sit between them and the object. - Object complements differ from appositives (no commas, can't be removed) and from subject complements (they describe the object, not the subject). - Double-object and to/for patterns are both correct; the choice shifts the tone.

UK vs US Note

For this topic, UK and US English share exactly the same grammar — the tests, the categories, and the sentence patterns all work identically on both sides of the Atlantic. The only differences you'll ever spot are ordinary spelling swaps inside example sentences, such as colour [US: color] or favourite [US: favorite]. Don't let a spelling variant make you doubt the grammar underneath it.

Key Takeaways

• A direct object answers "what?" or "whom?" right after the verb.
• An indirect object answers "to whom?" or "for whom?", sits before the direct object, and has no preposition in front of it.
• Once a preposition (to, for) appears, you're looking at a prepositional phrase, not an indirect object — see Pillar 2 for the full picture.
• An object complement renames or describes the direct object rather than introducing something new; test it by slipping in "to be".
• Some sentences are genuinely ambiguous, and some verbs (explain, describe) simply don't allow the double-object pattern.

Check Your Understanding

1. In "The coach gave Maya a medal," identify the direct object and the indirect object.
2. In "They made the room tidy before the guests arrived," what is the object complement, and what job does the final clause do?
3. Why does "I sent a message to Ben" contain no indirect object, even though someone clearly received the message?
4. Rewrite "My uncle sent me a birthday card" using the to/for swap, and check it still makes sense.
5. Why is "Call her a legend" potentially ambiguous?

Answer key

1. Direct object: a medal. Indirect object: Maya.
2. Object complement: tidy (it describes the room, the direct object). Before the guests arrived is a time clause, not any kind of object.
3. Because to Ben is a prepositional phrase — the preposition to means Ben is the object of that preposition, not an indirect object of the verb. The direct object is a message.
4. My uncle sent a birthday card to me. Still makes sense, which confirms me was a genuine indirect object in the original.
5. It could mean "phone up a legend for her" (indirect object + direct object) or "from now on, refer to her as a legend" (direct object + object complement).

Internal Links

• 1.1 Subjects and Predicates — for how objects fit into the basic sentence frame.
• 1.3 Subject Complements — to contrast complements that describe the subject with complements that describe the object.
• 1.4 Sentence Patterns — to see full patterns like Subject–Verb–Direct Object–Object Complement in action.
• 2.1 Sentence Types — for how these elements behave across simple, compound, and complex sentences.
• 6.3 Appositives — to distinguish appositives from object complements when both rename a noun.
• Back to Pillar 2: Prepositional Phrases — essential for keeping objects of prepositions separate from indirect objects.

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