Subjects & Predicates

You've drafted an email to your manager:

Hoping to take Friday off.

You hover over "send" and something feels off. It's the kind of line a teacher would once have circled in red — "incomplete sentence" — and you'd have argued it sounds perfectly fine when you say it out loud. Which it does. But why does it still niggle on the page?

Or you're helping a kid with homework, the worksheet says "underline the subject, circle the predicate," and you realise — with a small flush of embarrassment — how little of that ever actually stuck.

Here's the thing. Underneath all the labels sits one genuinely simple idea: every full sentence has a subject and a predicate. See those two pieces clearly, and you can spot fragments in your own writing before anyone else does, tidy up a clunky line in a report, and understand exactly why some sentences hum along and others just don't.

In the wider guide How Sentences Work we looked at what makes a sentence complete. Now we're going under the bonnet to find the two parts that make it work.

Before you read on, here's where we're heading. By the end you'll be able to: - Identify the subject and predicate in real emails, reports, and everyday sentences. - Separate simple from complete subjects and predicates. - Recognise compound subjects and predicates when they turn up in your own writing. - Understand the implied subject in instructions and requests. - Use all of this to write clearer, tighter sentences — and to spot other grammar concepts once you know where to look.

Beginner (Foundation): the basic pattern in any sentence

Start small:

Birds sing. Prices rise. Rent increased.

Each of these is a full, working sentence, doing exactly two jobs at once:

• Subject — who or what the sentence is about
• Predicate — what we're saying about that subject; it starts with the main verb

Rent increased. Subject: Rent. Predicate: increased.

Simple enough. Now stretch it out a bit:

The new starter in marketing resigned yesterday. My laptop battery is almost dead.

Looks more complicated. It isn't, really — the same two-part pattern is sitting right there underneath:

• Subject: The new starter in marketing → Predicate: resigned yesterday
• Subject: My laptop battery → Predicate: is almost dead

A handy pair of questions, and you'll never lose your way:

• "Who or what is this about?" → subject
• "What are we saying about them?" → predicate

Simple vs complete

You'll sometimes bump into two extra bits of jargon:

• Simple subject — the key noun or pronoun sitting at the heart of the subject.
• Complete subject — the simple subject plus everything describing it.

And the mirror image on the other side:

• Simple predicate — the main verb, sometimes with a helper (has gone, is working).
• Complete predicate — the verb plus everything attached to it.

Take:

My new line manager has already scheduled three meetings.

• Complete subject: My new line manager → simple subject: manager
• Complete predicate: has already scheduled three meetings → simple predicate: has scheduled

Common Mistake: People very often underline only the first word as the subject — My, instead of My new line manager. The subject is the whole "who/what" chunk — main noun plus everything attached to it, not just its opening word.

Why does any of this matter, once you're past the classroom? Because being able to see the subject and predicate lets you:

• Spot when something's missing from your own writing before you hit send.
• Check that your message is actually a full sentence, and not a fragment dressed up as one.
• Slim down a wordy sentence by finding its real core and cutting the rest.

Quick recap: - A full sentence has a subject and a predicate, no exceptions. - The predicate begins at the main verb — that's your entry point. - Simple = the core word; complete = that word plus its modifiers. - Ask "who/what is this about?" then "what about them?" and you'll find both halves every time.

Intermediate (Development): longer sentences, compounds, and instructions

Real-world writing rarely sticks to "Birds sing." It's more like:

All team members who haven't submitted their timesheets yet should do so by 5 p.m.

Still just one subject and one predicate at work, though — you just have to dig a little.

Find the verb first: should do. Work backwards from there to see who "should do so":

• Complete subject: All team members who haven't submitted their timesheets yet
• Simple subject: members
• Complete predicate: should do so by 5 p.m.

Another one:

After several delays, the replacement parts finally arrived this morning.

Strip off the opening time phrase — After several delays — and you're left with the actual engine:

• Simple subject: parts → complete subject: the replacement parts
• Simple predicate: arrived → complete predicate: arrived this morning

Those opening phrases turn up everywhere in office writing — "After further discussion…", "In the current climate…" — and they don't touch the core subject–predicate pair one bit. They just sit in front of it, setting the scene.

Compound subjects and predicates

You'll also meet sentences where more than one subject shares a predicate:

Sarah and Jamal will present the findings.

Compound subject: Sarah and Jamal. Predicate: will present the findings.

Or the subject does more than one thing:

The consultant reviewed our process and suggested improvements.

Subject: The consultant. Compound predicate: reviewed our process and suggested improvements.

Both together:

The CEO and the board discussed the proposal and asked for revisions.

Compound subject: The CEO and the board. Compound predicate: discussed the proposal and asked for revisions.

Pro-Tip: Stuck? Split the sentence and test each half on its own: - Sarah will present the findings. ✓ - Jamal will present the findings. ✓ Both hold up — so you've got a compound subject. Run the same test on predicates and you'll spot those just as fast.

The invisible "you" in instructions

Instructions are everywhere in adult life:

Please sign and return the form. Click the link below to reset your password. Don't share this code with anyone.

They look odd on the page because there's no subject in sight. Who's meant to sign, click, not share? You. The subject in every one of these is implied:

(You) please sign and return the form. (You) click the link below…

If a grammar checker or a worksheet asks for the subject of a command, "you (understood)" is the correct answer — even though the word never appears.

Common Mistake: In commands, people sometimes label the first noun they see as the subject — the form, the link. Those are objects; they're on the receiving end of the action. The subject stays you, whether it's written down or not.

Quick recap: - In longer sentences, find the verb first, then work out who or what pairs with it. - Opening phrases don't shift where the subject–predicate pair actually sits. - Compound subjects share a predicate; compound predicates share a subject. - Instructions run on an implied you, whether or not it's written.

Advanced (Mastery): tricky word order, and why this earns its keep

If you're dealing with more formal writing — reports, applications, anything with an audience you're trying to impress — this is where the subject–predicate idea really pulls its weight.

Questions and inverted word order

Questions flip the normal order round:

Are you free on Thursday? Is the printer working again? Have the documents been sent?

The verb (or a helper like are, is, have) leads, then the subject follows. Unsure? Rewrite as a statement:

You are free on Thursday. The printer is working again. The documents have been sent.

Subject's back where you expect it, and easy to see.

"There is / There are" and the real subject

English loves opening a sentence with there:

There are several issues we need to address. There was a problem with the payment.

Tempting to call there the subject. It isn't — it's a dummy word, filling the seat. Ask "what are? what was?":

• Several issues are what we need to address → subject: several issues
• A problem was with the payment → subject: a problem

This matters more than it looks, because your verb has to agree with the real subject, not with there — a point we'll pick up properly in Verbs & Tenses, but it's worth knowing where the real subject's hiding right now.

Fronted phrases and clauses

Formal writing likes to open with a phrase or clause before getting to the point:

In light of recent events, the committee has decided to postpone the meeting. Although the figures are encouraging, our work is not finished. After the new policy was introduced, staff morale improved noticeably.

None of those openers — In light of recent events, Although the figures are encouraging, After the new policy was introduced — is the subject. They're setting the scene before the real sentence starts. Strip them out and the cores are plain:

The committee has decided to postpone the meeting. Our work is not finished. Staff morale improved noticeably.

Spotting that core is genuinely useful when you're editing someone else's overstuffed prose — or your own, at 4:55 on a Friday, when you're just trying to get the email out the door.

Pro-Tip: When a sentence feels bloated, hunt for the shortest possible subject–predicate version hiding inside it. For the last example above, that's simply Staff morale improved. Everything else — the timing, the intensifier — is optional. Once you can see the bare bones, you can decide what earns its place and what gets cut.

Why this is the foundation, not the whole building

Once the subject–predicate pattern is properly clear in your head, everything else in grammar starts slotting into place around it. Objects and Complements live inside the predicate — they're what receives the action, or what completes it. Subject Complements sit after linking verbs like be, seem, become and describe the subject back to itself (The weather is awful — awful describes weather). Sentence Patterns are really just variations on how subject, verb, object, and complement arrange themselves around this same core.

And crucially, you'll catch sentence fragments far faster once you're used to this. Long doesn't mean complete — you can write a twenty-word fragment that never actually finds a proper subject and verb of its own:

Because of the delays in shipping and the unexpected strike action at the depot.

All decoration. No subject actually doing anything. It's crying out for a main clause to attach itself to.

Common Mistake: Assuming that a long, official-sounding sentence must be complete. It doesn't follow. Length has nothing to do with whether a sentence actually has a working subject and predicate — check for both before you trust it.

Quick recap: - In questions, flip back into statement order to find the real subject. - There is/are sentences tuck the true subject in after the verb. - Fronted phrases and clauses set the scene — they never replace the core subject–predicate pair. - Subjects and predicates are the foundation objects, complements, and sentence patterns are all built on. - Seeing that core is what makes editing — yours or anyone else's — genuinely faster.

UK vs US Note

The grammar of subjects and predicates is identical in UK and US English — no differences to flag there. What might shift in the examples is spelling: favour [US: favor], behaviour [US: behavior], organise [US: organize]. The patterns and definitions you've learnt here apply exactly the same way on both sides of the Atlantic.

Key Takeaways

• Every full sentence has a subject (who/what it's about) and a predicate (what's said about it).
• Simple subjects/predicates are the core words; complete ones include everything attached.
• Compound subjects and predicates let a sentence carry more than one doer, or more than one action, off a single core.
• Instructions carry an implied "you" as their subject, even though it's never on the page.
• Questions, "there is/are" constructions, and fronted phrases can shuffle word order — the underlying subject–predicate engine never changes.
• Seeing that engine clearly is what lets you catch fragments, tighten long sentences, and understand what's coming next in grammar.

Check Your Understanding

1. For each instruction, write the implied subject and underline the predicate: a) Please send me the revised document by tomorrow. b) Don't forget to lock the office door.

Rewrite this question as a statement, then mark the subject and predicate:

Are there any seats left on the 6 p.m. train?

Is the bold part a compound subject or a compound predicate?

The manager reviewed the proposal and requested changes.

Identify the simple subject and simple predicate:

After several attempts, our IT department finally fixed the issue.

Underline the complete subject and circle the complete predicate:

The updated terms and conditions will take effect from 1 September.

Internal Links

Back to: Pillar 1 — How Sentences Work

Forward to: - 1.2 Objects and Complements - 1.3 Subject Complements - 1.4 Sentence Patterns - 2.1 Sentence Types - 5.1 Sentence Fragments