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Conditional sentences. Conditionals describe the result of a certain condition.

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The if clause, and it has two parts, two different clauses, no?

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The if clause tells you the condition, if you study hard, and the main clause tells you the result, you will pass your exam.

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So both are necessary for the conditional.

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The order of the clauses does not change the meaning, but if the if clause comes first,

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it must be followed by a comma.

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Example, if it rains, comma, I'll stay at home.

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Whether if you put it the other way around, I'll stay at home.

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If it rains, there is no comma.

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Okay, there are four types of conditional sentences.

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sorry, they are classified according to the degree of probability that they

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express. But we are going to focus on two of the types, zero conditional and

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first conditional. Zero conditional structure if plus present simple and

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then in the main clause present simple too. So the if clause and the main clause

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the tense that we will be using for the zero conditional will be

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present simple.

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When do we use it?

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We use it to talk about things that are always true,

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like a scientific fact.

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Also for general truths and for habits.

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I get tired if I work too much.

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Okay?

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That is a truth or that is something that always happens, no?

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If I'm late for dinner,

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they start eating without me. If you freeze water

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it turns into ice. First conditional

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structure if plus present simple

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and in the main clause we put simple future

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that is to say will, will do, will go

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I mean will plus infinitive or in the negative won't

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plus the infinitive, won't go, won't do

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When do we use it? We use it to express a real

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or very probable situation in the future.

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It refers to things that will possibly happen

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in the future if a condition is met.

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It's common when we are talking about possible plans,

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promises, warnings, threats

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or for persuading someone. Examples

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of first conditional. If it rains, I will stay at home.

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If I wake up late, I will miss the bus.

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And if you study hard, you will pass your exams.

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So these are very probable to happen if the if clause,

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if the if condition happens, then

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the result will be

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what is expressed in the main clause.

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And thank you very much for listening.