Expressing a condition


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. (= If I were you I would not refuse this offer.)
Expressing a condition using unless

We can express a condition using unless.
Unless you give me the keys of the safe, you will be shot.
Unless you agree to my proposal, you cannot expect any help from me.
By using a conjunctional phrase

A condition can be expressed using a conjunctional phrase like in case orbut that.
In case it rains, I shall put on my rain coat.

It is also possible to express a condition using a participial phrase.
Supposing he does not come, what will you do?
I will help you provided that you follow my instructions.

The same conditional sentence or idea may be expressed in a number of ways. Study the following examples carefully.
You will win, if you study well.
You will not win, unless you study well.
You will win, provided that you study well.
In case you study well, you will win.
Supposing you study well, you will win.

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