To- & Bare Infinitives

You're halfway through a story for English homework, and you write I wanted run home — then you stop, because something's gone wrong and you can't quite say what. Or your teacher circles She made me to clean the board, and you're left staring at it, wondering why the first verb was fine on its own but the second one apparently needs a to — no, wait, doesn't need one — you've lost the thread completely.

Here's the thing. Nobody's born knowing when English wants that little word to in front of a verb and when it quietly drops it. It's one of those wobbly moments every writer has — I still catch myself hovering over one now and then — and it's completely normal.

An infinitive is just the plain, dictionary form of a verb — the name of the action, before you've pinned it to a person or a time: go, eat, run, be. English uses that form two ways. Sometimes it puts to in front — to go, to eat, to run — and we call that a to-infinitive. Sometimes it leaves the to off — go, eat, run — and that's a bare infinitive. The good news is the choice isn't random. Once you know who wants which, a surprising number of homework lines, exam answers and even texts to your mates start behaving themselves.

Before you read on, here's where we're heading. By the end of this article, you'll be able to: - Spot a to-infinitive and a bare infinitive on sight. - Use to-infinitives as subjects, to show purpose, and after verbs like want and hope. - Use bare infinitives after modal verbs and after make, let and help. - Dodge the classic slips that cost marks — and tell a real rule from a fussy one.

Beginner (Foundation)

Let's start as simply as it goes. An infinitive is what you get when you look a verb up in a dictionary: play, go, read, be. It hasn't got a tense yet; nothing's happened to it. English takes that plain form and uses it two ways.

The first way sticks to in front — to play, to go, to read. You already use it constantly, probably without a second thought: I want to play, She hopes **to pass, We're going to read the next chapter. Think of the to as a little flag that says: what's coming is the bare idea of the action.

The second way leaves the flag off — just play, go, read. You hear it all the time after words like can, will, should: I can play, She will **read, You should go. No to anywhere. The modal has already done the job of introducing the verb, so a to would only be in the way.

Here's a pair from an ordinary school day — same verb, different wrapping:

• I hope to win the race. — to-infinitive, after hope
• I can win the race if I train. — bare infinitive, after can

We also lean on the to-infinitive to say why we did something. She went to the library to study. That to study answers "for what purpose?" — and you can test it by slipping in order in front: in order to study still makes sense, so it's a purpose to-infinitive. And, just occasionally, a to-infinitive sits right at the front of a sentence as its subject — To learn a language takes time. It sounds a touch formal for a text to a friend, I'll admit, but it's perfectly correct in an essay.

Then there are two ordinary verbs — make and let — that behave like the modals and take a bare infinitive after their object: Mum let me stay up, The teacher made us tidy the room. Not let me to stay. Not made us to tidy. We'll come back to those.

Common Mistake: Writing She must to go after a modal. Drop the to — modals never take it: She must go.

Pro-Tip: If a sentence answers "Why did you do that?" and you can swap the answer for "in order to…", it almost certainly needs a to-infinitive: I saved up (in order) to buy a bike.

Quick recap: - A to-infinitive is to + verb (to run); a bare infinitive is the verb alone (run). - To-infinitives follow verbs like want, hope, need and show purpose (went… to buy). - Bare infinitives follow modals — can, will, should, must. - Make and let take a bare infinitive too: let me go, made him laugh.

Intermediate (Development)

Now let's map those two shapes onto the places they actually turn up — because knowing the shape is only half the battle; the other half is knowing who invites which.

Start with the to-infinitive. Its biggest job is finishing off the meaning of another verb — grammarians call it a complement, but you can just think of it as the verb the first one was reaching for. Plenty of everyday verbs pull a to-infinitive along behind them: want, need, hope, decide, plan, promise, offer, learn, agree, refuse.

• We decided to practise after school.
• He promised to help with the poster.
• She refused to share her notes.

Say just "We decided…" and you can feel the sentence leaning forward, waiting — decided what? The to-infinitive catches it: decided to practise. It also finishes off lots of adjectives in the same way: happy to help, hard to explain, afraid to ask, ready to go.

Its second job is purpose, which you met a moment ago — I stayed late to finish the project. Cleaner than writing "because I wanted to finish" every single time, and it reads well in an exam.

And its third job — a bit more formal — is standing in as the subject of a sentence: To argue with the referee was a bad idea. In speech we usually shuffle it to the end and prop up the front with it: It was a bad idea to argue with the referee. Both are correct; the it version just sounds more like something you'd actually say out loud.

Now the bare infinitive. The big group, as you know, is the modals — can, could, will, would, shall, should, may, might, must. After any of them, English wants the bare form and no to: You must do the prep, She might arrive late, Could I borrow a pen? Slip a to in there — must to do — and it clangs, because it's wrong.

Then come those three ordinary verbs — make, let and often help — that take a bare infinitive after an object:

• The teacher made us tidy the classroom. — not made us to tidy
• Mum let me stay up to finish the book. — not let me to stay
• Can you help me carry these bags? — or help me to carry; both are fine

That last one's worth a note. Make and let are strict — no to, ever, once there's an object. But help is the friendly one of the three: help me carry and help me to carry are both correct, and you'll hear both. At your stage I'd reach for the bare form — help me do is always safe — but don't let anyone tell you the to version is a mistake, because it isn't.

Common Mistake: She made me to clean the board. / They let us to leave early. After make and let, kill the to: made me clean, let us **leave.

Pro-Tip: Learn a short list and keep it on a sticky note until it feels automatic — modals (can, must, should) → bare; want, hope, decide → to. That one habit catches most infinitive slips.

Quick recap: - To-infinitives complete verbs (decided to stay) and adjectives (happy to help). - They also show purpose (left early to catch the bus) and can be subjects (To wait is hard). - Bare infinitives follow every core modal — no to. - Make and let + object take bare; help takes either.

Advanced (Mastery)

At this level you're not just parking the form in the right spot — you're choosing the version that sounds most natural, and spotting the edge cases that catch people out when a sentence gets longer.

First, a trap worth naming, because it's the one that costs the most marks. Not every "make somebody do something" verb behaves like make and let. Their close cousins — force, allow, order, require — all take a to-infinitive: forced me to leave, allowed us **to leave, ordered them to wait**. So we've two little families sitting right next to each other:

• make / let → bare: made me leave, let us go
• force / allow / order / require → to: forced me to leave, allowed us to go

Mixing those two up — writing made me to leave, or forced me leave — is the classic slip. Learn them as two groups, not one wobbly half-rule.

Next, the for + someone + to-infinitive pattern, which you'll need the moment you want to say who's doing the action:

• It's important for you to listen.
• It's unusual for him to be late.
• This is a chance for us to win.

Notice you need both halves — for + the person, to + the verb. It's important for you listen (no to) and It's important you to listen (no for) are both broken; the full pattern is for you to listen.

There's also a neat little structure with question words — what, how, where, whether — followed straight by a to-infinitive, when you're talking about a question rather than asking one:

• I don't know what to say.
• She couldn't decide where to sit.
• Tell me how to do it.

And here's one I can't resist clearing up, because it's been used to make people feel small for a couple of hundred years. The split infinitive — sticking a word between to and the verb, as in to boldly go — is not a mistake. It never was. Somebody once decided English ought to behave like Latin, where the infinitive is a single word you physically can't split, and the "rule" hung around long after anyone remembered why. So write to really understand this if it reads better than to understand this really — you've my blessing, and every decent style guide's too. In a formal exam you can shift the word aside to keep a nervous marker happy, but nobody sensible will dock you for the split itself.

One last thing — the borders. You may have noticed that some verbs let you choose between a to-infinitive and an -ing form: I like to swim / I like swimming, I started to read / I started reading. That whole tug-of-war is a big topic with its own rules, and it lives in F2. Don't assume to do and doing always mean the same thing — they don't — but don't try to settle it from this article either. And the fuller patterns make, let and have can build — the causative stuff, like have the work done — belong with F5. Here we stop at the basic bare-infinitive fact: made me leave, let us go.

Common Mistake: Treating force and allow like make and let. It's made me leave (bare) but forced me to leave (to). Two families, two rules.

Pro-Tip: Read the sentence aloud without the to. If the verb sounds like it's being introduced by can/will/make/let, leave the to out. If it's hanging after want/hope/decide, or answering "why?", put it back in.

Quick recap: - make/let → bare; force/allow/order/require → to. - Use for + someone + to-infinitive to name the doer: for him to start. - Question words take to-infinitives: how to do it, what to say. - Split infinitives are fine — that "rule" was borrowed from Latin and never fit English. - Gerund-vs-infinitive (F2) and full causatives (F5) sit outside this article.

UK vs US Note

The mechanics here are shared — a to-infinitive is a to-infinitive on both sides of the Atlantic, and make/let/help behave identically. The only differences you'll see are cosmetic spellings in the words around them: apologise [US: apologize], practise the verb [US: practice], organise [US: organize]. The infinitive itself — to apologise / to apologize — doesn't change its behaviour one bit.

Key Takeaways

• An infinitive is the plain form of a verb; it shows up as a to-infinitive (to go) or a bare infinitive (go).
• Use to-infinitives after verbs like want, hope, decide, after many adjectives (happy to help), to show purpose, and as subjects.
• Use bare infinitives after modals (can go, must eat) and after make and let (made me tidy, let us leave); help takes either.
• Don't put to after can, must, should, make or let.
• Force, allow, order, require do take to — don't lump them in with make/let.

Check Your Understanding

1. Choose the correct form: I can (to finish / finish) this worksheet before lunch.
2. Correct or incorrect? Ms Patel made us to rewrite the paragraph.
3. Rewrite for purpose, using a to-infinitive: He went to the shop. He bought milk.
4. Which is the more formal subject — To wait is boring or Waiting is boring?
5. Fill the gaps: It's important ___ you ___ listen carefully.

Answer key 1. finish — bare after the modal can. 2. Incorrect → made us rewrite (no to after make). 3. *He went to the shop to buy milk. 4. To wait is boring — the to-infinitive subject is the more formal one. 5. It's important for you to listen carefully. — you need both for and to*.

Internal Links

• F2 — Gerunds vs Infinitives (verb patterns): for the to do vs doing choice.
• F5 — Causatives (make, let, have, get): for the fuller patterns make/let/have can build.
• B4 — Modal Verbs: more on can, could, should, must and the rest.
• E2 — Reported Commands and Requests: how infinitives carry orders in reported speech (She told me to sit down).