Direction: In the following questions, some of the sentences have errors and some have none. Find out which part of a sentence has an error and indicate appropriate number (1, 2, 3). If there is No error, indicate corresponding number (4) as your answer.
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					 Solve the question according to given instruction
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                        - I saw him
- a couple of times
- since May
- No error
 
Correct Option: A
have seen will replace saw because – 
Since (Prep.) : from a time in the past until a later past time, or until now, used with the Present Perfect or Past Perfect Tense. 
Look at the examples given below : 
She has been off work since Tuesday. 
He has been working in a bank since leaving school. 
Hence, I have seen him is the right usage
 
	