The verb to believe · Conjugation
Future Simple of believe
The answer: will believe
A2
A decision made now, a promise or a prediction.
Quick answer
The Future Simple of the verb to believe is will believe.
Example: I will believe the story tomorrow.
Full conjugation in the Future Simple
| Pronoun | Form | Contraction |
|---|---|---|
| I | will believe | I'll believe |
| You | will believe | You'll believe |
| He / She / It | will believe | He'll / She'll / It'll believe |
| We | will believe | We'll believe |
| You (pl.) | will believe | You'll believe |
| They | will believe | They'll believe |
Common mistakes to avoid
1. I will to believe ❌
After will, use the base form, with no to: I will believe. Will never takes -s, and the verb after it has no -s either. Say she will believe, not she wills believe or she will believes.
2. I will can believe ❌
Will is a modal verb (a helper verb like can, must or should). Two modal verbs cannot go together. Use will be able to for can: I will be able to believe. Use will have to for must: I will have to believe.
3. When I will arrive, I will call you ❌
After when, if, before, after and as soon as, use the Present Simple for the future, not will. Say When I arrive, I will call you. Will goes in the other part of the sentence.
Practice quiz
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Frequently asked questions
How do you conjugate believe in the Future Simple?+
Use will + the base form (the verb with no to): will believe. The form is the same for every person: I will believe, she will believe, they will believe. In speech, will often becomes 'll: I'll believe.
When do you use the Future Simple of believe?+
Use will for a decision you make at the moment of speaking: The phone is ringing. I'll answer it. Also use it for a promise (I'll help you.) and for a prediction (I think it will rain.).
Is it will or going to?+
Use going to for a plan you made before you speak: I'm going to visit my grandma on Sunday. Use will for a decision you make now: I'm hungry. I'll make a sandwich. With believe: I'm going to believe (a plan), I'll believe (a decision now).
How do you make the negative of believe in the Future Simple?+
Use will not + the base form, or the short form won't: I won't believe, she won't believe. Careful with the spelling: the short form is won't, not willn't.
How do you make a question with believe in the Future Simple?+
Put will before the subject: Will you believe…?, When will she believe…? The main verb stays in the base form, with no -s and no to. Short answers: Yes, I will. / No, I won't.
Related pages: believe Future Simple
Pages on a similar topic or with a similar use, so you can keep exploring.
Updated on 12 November 2026 by the Big Challenge teaching team. Every year, more than 500,000 students across Europe take part in our English contest, created in 1999. Our teaching approach →
The Big Challenge · Updated on 12 November 2026 · Source: www.thebigchallenge.com/bl/academy/learn-english/verbs/believe/future-simple
© The Big Challenge. Copying allowed for classroom use. Every year, more than 500,000 students across Europe take part in our English contest, created in 1999.
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More forms of the verb to believe are coming soon.