The zero conditional is used to describe, generally known truths, scientific facts, the time is always and now and the situation is possible and real.
If-clause |
Main clause |
If + present simple |
present simple |
If clause |
Main clause |
---|---|
If + subject + verb in the present tense | Subject + verb in the present tense |
If babies are hungry, |
they cry. |
If you heat ice, |
it melts. |
As with all conditional sentences, the order of the clauses can be changed. However you may have to rearrange the pronouns and correct the punctuation..
Main clause |
If clause |
---|---|
Subject + verb in the present tense | If + subject + verb in the present tense |
Plants die |
if they don’t get enough water |
I get hungry |
if I don’t eat |
In zero sentences, if can be replaced by when without changing the meaning of the sentence.
Examples:
When you heat ice, it melts.
When you don’t give plants enough water, they die.
Conditional sentences are sentences that discuss known factors or hypothetical situations and their consequences.
A conditional sentence consists of two clauses: the condition or if-clause and the main or result clause.
There are five main types of conditional sentences.
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