Adverb Clauses of Condition

Adverb Clauses of Condition are introduced by the Subordinating Conjunctions if
whether, unless.

If I like it, I shall buy it. Come if you wish to.
If it rains we shall stay al home.
If you have tears, prepare to shed them now.
You must go whether you hear from him or not.
Whether the Rajah gives him blows or money, he will speak the truth.
Unless you work harder you will fail.
I shan't pay it unless he sends me the bill again.
I will forgive you on condition that you do not repeat the offence.
Note :- Sometimes the Subordinating Conjunction is omitted in Adverb Clauses of
Condition; as,