# if

## If Clauses

If clauses are usually used to talk about uncertain events and situations. They often refer to a condition – something which must happen first, so that something else can happen. If you love me, I will love you. If you study well, you will pass the exam. If you marry me, I will make you my queen. If you …

## If, Unless, In Case, Provided That

We can express a condition in several ways. For example, we can use if. If you heat ice, it melts. If you give respect, you get respect. Sometimes if is omitted. Had I been there, there would have been no problems. (= If I had been there, there would have been no problems.) Were I you, I wouldn’t refuse this offer. (= …

## Whether vs. If

Whether and If We can generally use both whether and if to introduce indirect yes/no questions. I am not sure whether/if she will come. I asked whether/if she had any letters for me. I don’t know whether/if I can come or not. Cases where only whether is possible After prepositions only whether is possible. There was a big argument about whether we should move to a new house. (NOT There was …

## Conversational Structures With If

If … should; if … happen to We use these structures to talk about events and situations that are very unlikely. If you should finish early, give me a ring. OR If you should happen to finish early, give me a ring. If he should be late, we will leave without him. OR If he …

## In Case vs. If

In case is used to talk about things which we do in order to be ready for possible future situations. I always take an umbrella in case it rains. (= because it might rain.) After in case, we use a present tense to refer to the future. We often use should + infinitive after in …

## If vs. Unless

The conjunctions if and unless introduce a condition – something which must happen first so that something else can happen. Unless means if not. Read the following sentences. Work hard. Otherwise you will not pass. These two sentences can be combined into one using if or unless. If you work hard, you will pass. OR …

## Correct Use of If

If is a conjunction. We use it to express a condition. If you arrive early, we can go to the movies. If she is late, we will go without her. If I win this championship, my parents will be proud of me. If you are hungry, I will get you something to eat. Since ‘if’ …

Scroll to Top