(1) Conjunctions of Comparison
As……………as, not so/ as…………….as,(with positive degree) than, to (with comparative degree)
This book is as good as that.
This book is not so/ as good as that.
This book is better than that.
I am senior to him.
(2) Conjunctions of Concession:
Though, Although, Even if, For all, No matter, However, Whatever, Adjective/Adverb + as
Though he is poor, yet he is honest.
Even if he is selfish, I will help him.
For all they say about him, He is a good man.
No matter what you say, I will go ahead.
However fast he may drive, he cannot reach in time.
(3) Conjunctions of Condition
If, Unless, Provided, Provided that, In case, Supposing that
If you are honest, you will succeed.
Unless you are honest, you will not succeed.
You will succeed provided you are honest.
You will succeed provided that you deal honestly.
(4) Conjunctions of Cause
Because, Since, As, For, That, Considering that, Seeing that, In as much as, Noun + that, Adjective + that
He failed because he did not study regularly.
We started late for the morning was very cold.
Considering that it was very cold, he did not go for swimming.
Seeing that the morning was very foggy, he started late.
I am glad that he has passed
(5) Conjunctions of Time
When, While, Before, After, Till, Until, Since, As, As soon as
I will go when you come.
She cooks the food while the child sleeps.
I shall get up before the Sun rises.
He retired to bed after the show was over.
Don’t go home until I come.
He got up as soon as he saw me.
I shall meet you when you come next.
Note (i): If Principal clause is in future tense then the clause beginning with above ‘time denoting conjunctions’ always come in simple present tense or present perfect tense.
Note (ii): ‘After’is generally followed by ‘Present perfect tense’and not by‘Simple present tense’.
e.g., He will return after the train has left.
(6) Conditional Conjunction and the Tense: Sentences showing Condition / Suppositioncan be written in three tenses.
(A) Simple Future Tense: Principal clause is used in Future Tense and Subordinate Clause in Present Tense in those sentences having maximum chance of fulfillment of conditions, that means the conditions are not very tough.
If you start early, you will reach in time.
If you are honest, you will be respected.
(B) Past tense is used with in those sentences where there is little or no chance of fulfillment of conditions.
If he built two houses, he would give me one.
If I secured the first division, he would give me a golden watch.
(C) These sentences denote Past Actions and the conditions remain unfulfilled and the time has already passed.
If I had secured the first division, he would have given me a golden watch. OR
Had I secured the first division, he would have given me a golden watch.