Learn to use "Since, Because, For, As" correctly

Since, Because, For, As

All the 4 conjunctions (Since, Because, For, As) mean ‘Because’

A. 'Since' is used to express time/cause or reason.

1. Since is used to express time.

Example: She has not been working since she got married.

2. Since to show cause/reason

Since we have grown up together, I am very attached to him.

Sincehave grown up togetherI’mVery attached to him.

From the above 2 examples we deduce that:

1. ‘Since’ means because while showing cause or reason.
2. The word ‘since’ should always be used at the beginning when used to specify reason.

B. Use of 'Because'

Example: I care for him because he is my younger brother.

Here, the subject (I) cares for the object for a reason and the reason is that the object is her younger brother.


1) ‘Because’ is usually used to join two clauses.
2) As far as possible, a sentence should not be started with ‘Because’.

C. 'As' is used as a subordinate conjunction. It defines ‘reason’ or ‘cause’

Example: As he is my colleague, I respect him.


1) ‘As’ means because while showing some reason.
2) ‘As’ is generally used in the beginning of the sentence to specify some reason.
3) ‘As’ is also used to express ‘manner’

D. Use of 'For'

“For’ is used to specify some reason and is used after the manner of ‘As’

From the above 4 (Since, Because, For, As) examples we deduce that:

1) ‘Because’ shows strongest reason.
2) Since shows normally strong reason
3) As/For shows weakest reason.

Here are some interesting examples of the mistakes we commit in the usage of “because”. Find out the way to correct them:

a. Incorrect: Because he is honest, therefore everyone appreciates him.
   Correct: Everyone appreciates him because he is honest.

b. Incorrect: As you are my patient so I shall attend you.
    Correct: I shall attend you because you are my patient.