What Is a Verb?

Look up from your screen and describe what's happening near you. Your brother is running down the hall. The kettle whistles. Your phone buzzes. You feel tired because you stayed up too late. Every one of those sentences leans on one kind of word, and if you take it out the whole thing collapses. "The kettle" — and then what? Nothing. That word doing the heavy lifting is the verb.

Someone probably told you years ago that "a verb is a doing word." That's a decent start — until you meet a sentence like The sky was blue and seemed peaceful and get asked to underline the verbs. Was and seemed don't feel much like doing, and yet both are verbs. So let's widen it: a verb is a doing OR a being word. Some show an action; others simply tell you that something exists or is a certain way.

• Priya scored. (doing)
• Priya is my sister. (being)
• I am hungry. (being)

The quickest proof a sentence needs one is to take it out:

• ✗ The cat on the mat. (we never find out what the cat does or is)
• ✓ The cat sleeps on the mat.

A test that works most of the time: put the word after she or I. She sings ✓, She is tall ✓, but She table ✗ — so table isn't a verb here.

The three jobs verbs do

1. Action verbs — what someone or something does. Some you can see (threw, jumped); some happen quietly inside your head (think, remember, believe). Both count.

• Marcus threw the ball.
• I remember your birthday.

2. Linking verbs — no action at all. They work like an equals sign, joining the subject to a word that describes or renames it.

• Marcus is captain. (Marcus = captain)
• You look tired. (you = tired)

The commonest is to be (am, is, are, was, were); others are seem, become, appear, feel, look, sound, taste, smell. Handy test: if you can swap the verb for a form of be and it still makes sense, it's probably linking — You seem tired → You are tired ✓.

3. Helping (auxiliary) verbs — these team up with another verb to build a fuller meaning.

• She is singing.
• We have finished.

Each of those actually has two verbs. Singing and finished are the main verbs, carrying the real meaning; is and have are the helpers. Put them together and you've got a verb phrase. Here's the catch that trips up even clever people — the same word can do different jobs. She is happy (linking, standing on its own) versus She is running (helping running). The word didn't change; its job did.

Common Mistake: Thinking a word is "always" or "never" a verb. Loads of words switch. Water is a noun in "drink the water" but a verb in "water the plants." Always look at what the word is doing in that sentence.

Modals, and the good/well question

There's a small, useful group of helpers called modal verbs: can, could, will, would, shall, should, may, might, must. They tell you not what happens but how likely, allowed or necessary it is — You must finish, I might come, She can swim. They have two odd habits worth learning: modals never add "-s" (she can, never she cans), and they always sit before the plain form (might go, never must to go).

A few verbs flip between linking and action, and that decides good versus well. After a linking verb you describe the subject with a describing word (an adjective); after an action verb you describe how with an adverb.

• The soup tastes good. → tastes is linking (it describes the soup) → adjective good.
• The chef tastes the soup carefully. → tastes is an action → adverb carefully.

That's exactly why "I feel good" is right when you mean your mood — feel is linking there. (There's a whole article on the *good* vs well tangle; see the links below.)

One honest note: I keep writing is running, have finished — sentences that clearly point to now or the past. That timing is called tense, and it's a huge topic of its own, so I'm not teaching it here. Learn what the players on the pitch are first; you'll find how they move in the Verb System pillar, linked below.

Watch out: Never add "-s" to a modal (she can go, never she cans go). And in a long chain like She might have been waiting, remember the whole string is one verb phrase with just one main verb — usually the last, meaty word (waiting). The rest is scaffolding.

Quick check

1. In "The band played all night," which word is the verb, and what job does it do?

2. Is is linking or helping in "Leo is asleep"? What about in "Leo is sleeping"?

3. Find the main verb: "We should have practised more."

4. Name the modal in "You might win the raffle," and say what it adds.

5. In "The bread smells fresh," is smells action or linking? How do you know?

Where next

• What grammar really is — (start here if the terms feel new).
• Transitive and intransitive verbs — (does the verb pass action onto an object?).
• Regular and irregular verbs — .
• Stative and dynamic verbs — (a closer look at "action" verbs).
• What is a clause? — (how the verb fits the sentence).
• Good vs well — (linking vs action verbs in action).
• Subject–verb agreement (find the real verb first, then make it match).
• → The Verb System — where verbs learn to travel through time. Go here next.

Nobody's born knowing this — but you've been using verbs perfectly since you were about two. Now you can name what they are and the three jobs they do; the movement through time is waiting for you next door.