PERFECT TENSE

Okay let's talk about Perfect Tense. I have just opened my English primbon and found this subject. Check these : 

A. PRESENT PERFECT TENSE

Present perfect tense is is a kind of tense that the sentence form used for talking about a period time to present has happened.

Positive form :

Subject + Have/Has + Been + Object/noun/adjective

Subject + Have/Has + V3 + Object

Negative form :

Subject + Have/Has + not + been + Object/noun/adjective

Subject + Have/Has + not + V3 + Object

Interrogative form :

Have/Has + Subject + Been + Object + ?

Have?Has + Subject + V3 + Object + ?

Examples :

+ He has been busy

-  He has not been busy

? Has he been busy ?

+ I have done my homework

-  I have not done my homework

?  Have I done my homework ?

The adverbs are usually used in the present perfect tense :

• Already
• Since
• For
• Occasionally
• Just, etc

B. PAST PERFECT TENSE
Past perfect tense is a kind of tense that used for talking about a period of past time has happened.


Positive form :

Subject + Had + Been + Object/noun?adj

Subject + Had + V3 + Object/noun/adj

Negative form :

Subject + Had + Not + Been + Object/noun/adj

Subject + Had not + V3 + Object/noun/adj

Interrogative form :

Had + Subject + Been + Object/noun/adj + ?

Had + Subject + V3 + Object/noun/adj + ?

Examples :
+ You had been at home before night
-  You had not been at home before night
?  Had you been at home before night ?


+ John had waited for you for two hours
-  John had not waited for you for two hours
?  Had John waited for you for two hours ?


The adverb are usually used in the past perfect tense :

• Before
• Until
• As soon as
• After
• When
• While, etc

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