We use the first conditional to talk about real or possible future situations, to make predictions, offers, suggestions, etc.

  • If you eat that, you will be sick.
  • If she needs a car, she can borrow mine.
  • I’ll stay at home if it rains.

The structure of the first conditional is:
If/when + present simple – will + infinitive.

The “If-clause” is the conditional clause and the other clause(s) is the “main clause” (or “result-clause”) which tells the result.

It is not unusual to use the first conditional structure with: in case, unless, as long as, as soon as instead of “if”

  • In case you don’t get back by 10, I’ll call the police.
  • We’ll go for a walk unless it rains.
  • We will start eating as soon as Juli arrives.
  • As long as you lie to me, I’m afraid I won’t be able to help you.

Note: use a comma at the end of an if-clause when an if-clause is at the beginning of the sentence.

The First Conditional vs Zero Conditional

We use zero conditional to describe general situations such as laws of nature and permanent truths, while first conditional describes a particular situation.


  • I always go out with my friends if I finish work on time. (a general habit)
  • If I finish work on time, I’ll go out with my friends. (particular situation)
  • If you exercise, you burn fat. (law of nature)
  • If you exercise, you will burn fat. (particular situation)

Do the quiz to perfect your knowledge

First Conditional
First Conditional

If you really want to learn English but don’t know how to do it and where to start, don’t hesitate to contact us. Book an online English lesson with one of our certified and experienced English teachers and take a test and consultation. Choose the most suitable app: Skype, Zoom, WhatsApp, Viber or Facebook Messenger. You should certainly join us for 30-minute conversation sessions. We are organizing lessons at a 30% discount. Check it out!

My Lingua Academy

My Lingua Academy is an online school of English language. We give one-on-one lessons to students of English of all ages and all levels of knowledge all around the world. With us you can prepare for written assignments and exams, attend a general or business English course, or have conversation classes with qualified English teachers who have years of experience.


10 Idioms Starting with "DON’T" - My Lingua Academy · 12 Jan 2021 at 9:29 pm

[…] How to Use “So” and “Such” Correctly 10 Expressions with “Imagine” The First Conditional […]

How to Use "Wish" and "If Only" - My Lingua Academy · 19 Feb 2021 at 10:52 am

[…] First Conditional […]

9 Phrasal Verbs with "Up" - My Lingua Academy · 5 Dec 2021 at 11:59 pm

[…] The First Conditional […]

Second Conditional - My Lingua Academy · 13 Jan 2023 at 1:39 am

[…] You can find more about the first conditional here. […]

The Third Conditional - My Lingua Academy · 21 Apr 2023 at 12:24 pm

[…] Click here to learn more about the first conditional […]

Leave a Reply

%d bloggers like this: