Modal Verbs Can Could

Learn about themodalverbscanandcouldand do the exercises to practise using them.

Couldvs Can | Difference, Meaning & Examples Published on June 17, 2025 by Gina Rancaño, BA Revised on March 3, 2026 There's a time and place for "could" and "can." This blog post will teach you more about the meanings and uses of thesemodalverbs.Canandcouldaremodalverbsthat express possibility or ability.

You may/couldopen the window. - formal polite permission. Modals of request.Modalverbs'can' and 'could'canbe used to make a request. 'Could' sounds more polite than 'can'. We do not use 'may' for requests.

CAN/COULDaremodalauxiliaryverbs. We use CAN to: a) talk about possibility and ability b) make requests c) ask for or give permission. We use COULD to: a) talk about past possibility or ability b) make requests. We include BE ABLE TO here for convenience, but it is not an auxiliaryverb.

Themodalverbsin English grammar arecan,could, may, might, must, need not, shall/will, should/ought to. They express ability, permission, possibility, obligation etc. Learn about the usage ofmodalverbsand their alternative forms in English grammar with Lingolia's online lesson. The put your knowledge to the test in the free interactive exercises.

Modalverbsin Englishcanbe confusing! In this guide, we’ll explain what they are, why and how we use them correctly, and give you examples to improve your understanding.English has 9modalverbs:can,could, may, might, must, shall, should, will, would.

In English, can and could aremodalverbsthat often cause confusion because they overlap in meaning. While they both deal with ability, possibility, and permission, the primary difference lies in tense and tone.

People often use can and could interchangeably, even though the words have slightly different meanings. Luckily, the rules about when to use can vs. could are pretty straightforward. Both aremodalverbsused to express ability or possibility; they can also be used to ask for permission.

Introduction toModalVerbsWhen learning English, one of the key concepts you'll encounter ismodalverbs. We usemodalverbsto talk about what someone can do, what might happen, what is allowed, or to ask for something. In this guide, we'll focus on four of the most commonly usedmodalverbs:can,could, may, and might.

Next activity See our more simple notes about Can and Cannot. See our notes about otherModalVerbs. If you found these English Grammar Rules about Can vs Could interesting or useful, let others know about it.

Modalverbsare auxiliaryverbsthat express a speaker’s attitude towards the action of the mainverb. Unlike regularverbs,modalverbsdo not change form based on the subject and do not have past or future forms. The most commonmodalverbsarecan,could, may, might, shall, should

In English, the mainmodalverbsarecan,could, may, might, shall, should, will, would, and must.Modalverbsshow modality, which includes properties such as

Modals are different from normalverbs: 1: They don't use an 's' for the third person singular. 2: They make questions by inversion ('shecango' becomes 'canshe go?'). 3: They are followed directly by the infinitive of anotherverb(without 'to').

Themodalverbcanhas only two forms:can(present) andcould(past). We use themodalverbcanand the base form of theverbto form sentences. Questions are formed by inverting the subject andcan.

Modalverbsare auxiliaryverbslikecan, should, and must that express conditions such as possibility, ability, necessity, and permission. Frequently usedmodalverbsincludecan, may, might,could, should, would, will, and must.

ModalandModalPhrases (Semi-Modals). Amodalis a type of auxiliary (helping)verbthat is used to express: ability, possibility, permission or obligation.can/can't + base form of theverb. Tomcanwrite poetry very well. Icanhelp you with that next week. Lisacan't speak French.

Learn how English shows ability withmodalverbs. Youll comparecan,could, and be able to, use can for present skills, could for past or general ability, and see when be able to fits other tenses. Includes everyday examples, common mistakes, and practice exercises.

canandcouldaremodalauxiliaryverbs. be able to is NOT an auxiliaryverb(it uses theverbbe as a mainverb). We include be able to here for convenience.