Talking about Assumptions

The term assumption is derived from the verb assume. In this article, we will focus on the modal verbs to learn to talk about assumptions.

How to "Talk about Assumption" in English

What Do we Mean by Assumption?

The noun assumption is derived from the verb assume. Usually, when it comes to assumption, something is declared without firm proof. So, we should know how to express assumptions in a correct way.

Modals and assumption

There are words in English that are used to express assumptions. Here are the modals:

Using Will: Past, Present and Future

The modal verb 'will' is used to help us assume a fact. Your assumption might be true or not.
Normally, 'will' has a reference to the present or future tense, but sometimes it is followed by a perfect infinitive structure which makes it possible for 'will' to refer to the past tense.

I thought it will have been finished by Monday.

She won't talk to me. We broke up two months ago.

using 'ought to' to talk about assumptions

Using Should: Past, Present and Future

Although the modal verb 'should' is the past tense of the verb 'shall,' but when we are talking about assumptions it functions as a present or future verb unless there is a perfect infinitive structure after it.

They should be married by now.

We should have been graduated by now.

Using Ought to: Past, Present and Future

The modal verb 'ought to' is usually used as an alternative for the verb 'should,' but it is considered less common.
As you can guess, it refers to the present or future tense unless we use 'have + past participle' after it.

We ought to have won if we kept practicing.

You ought to be Maria. Right?


As you know, all these verbs are modal verbs and as a result, they are negated by adding the term 'not' to them. In this case, we can indicate that we do not think something is true.

You shouldn't be the one who stole my purse.

He will not be your best friend.


To talk about assumption you can use three verbs phrases as follows. Check out the table to consider them in different tenses.

Present Past Future
Ought to


Loading recaptcha

You might also like

Talking about Habits

Habits are things that we do regularly, from the past to the present time. Sometimes we can use some modals and semi-modals to refer to habits.

Making Offers

There are some modal verbs that can be used to make offers in English. In this article, we will learn about them. Click here to read more.

Making Requests

You might know that there are two kinds of requests in English. Direct requests and indirect requests. In this article, we will focus on indirect requests.

Modal Expressions

Modal expressions are not modal verbs. But they can imply the same concept as modal verbs do. These expressions are used to indicate a special mood. Read more.

Modals in Indirect Speech

Modal verbs change when they are used in indirect speech. In this lesson, we will learn about their structure and uses.
Download LanGeek app