Pre-Intermediate
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Conditionals

First Conditional and Time Clauses

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Definition and usage
1
Conditional sentences and time clauses are sentences consisting of at least two parts(clauses) and joined with conjunctions showing condition or time.
If you see her, tell her I need to talk to her. - conditional clause I will call you when I get home. - time clause
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The first conditional is used to talk about present and future events or situations that are likely to happen if a certain condition is met. It's a way to express a realistic possibility in the future.
If it rains tomorrow, we will cancel the picnic. If you study hard, you will pass the exam.
  • In these sentences, the condition (raining tomorrow, studying hard) is seen as possible, and the result (canceling the picnic, passing the exam) is what will happen if the condition is met.
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A time clause in English grammar refers to a clause in a sentence that describes a specific time or duration when something happens. These clauses often start with conjunctions like when, while, before, after, as soon as, till, until and once.
I will call you when I arrive. I will master English after I complete every exercise in my textbook
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Structure
1
Both conditional and time clauses have similar structure: they consist of two parts - if-clauses/time clauses and main clauses.
The following structures can be used in conditional sentences/time clauses
The main clause will + infinitive, modal verb, the imperative
If-clause/time clause present simple, modal verb
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It's a common mistake to use wil + infinitive after if or time conjunctions. Instead, the Present Simple or a modal verb is used to refer to future events in time and conditional clauses.
If it will stop raining, we will go for a walk.
If it stops raining, we will go for a walk.
When it will stop raining, we will go for a walk.
When it stops raining, we will go for a walk.
Here are some more examples of conditional and time clauses with modal verbs and the imperative.
If it rains, we might cancel the picnic. I cannot speak to him, until he apologizes to me. If you finish your work early, you should take a break. If it's hot tomorrow, wear sunscreen. When you see her, tell her I said hello. If the phone rings, answer it.
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Punctuation
Use a comma to separate the if-clause or time clause from the main clause. In case the sentence starts with main clause, if-clause is not marked by a comma.
If she calls, I will let you know. I will let you know if she calls. As soon as you get the letter, let me know. Let me know as soon as you get the letter.