well, after knowing well two tenses last time now we are going to study the third tense. in this tense you must look at the auxiliary carefully. if in simple present we know do and does, and in present continuous we know is, am, and are, in this tense the auxiliary used is have or has and followed by verb past participle. to understand more see the example below. but before that, I remind you that every sentence has subject and verb at least. that is why I always make an example under that symbols.
S V O
+ they watch TV ( in simple present)
+ they have watched TV
- they have not watched TV
? have they watched TV?
or
S V O
+ she calls me ( in simple present)
+ she has called me
- she has not called me
? has she called me?
to exercise your self at home you may download these exercise freely.
to download exercise 1 click here
to download exercise 2 click here
to download exercise 3 click here
to download exercise 4 click here
to download exercise 5 click here
to download exercise 6 click here
to download exercise 7 click here
to download exercise 8 click here
to download exercise 9 click here
to download answer key 1 click here
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