Perfect Tense

 My Grandpa said "There's no one in this world is perfect" That's right grandpa...? grandpa...? oh my god what is he doing now... I'm sorry my grandpa is a little bit em... strange... he always write or tell something that I'm not understand... like a relativity... or nuclear reaction...or other else. Do you know my grandpa...? this is my grandpa he's name is Albert... ok that's no matter... back to the real. Even there's no one is perfect... but in English there's someone or something is perfect... what is that...? you can read the explanation in here.
Present Perfect Tense
Present perfect tense is used for describing a past action's effect on the present.
The Pattern :
1. Affirmative Form
S + have/has + V3
Example :
I have arrived
2. Negative Form
S + have/has + V3
Example :
I have not arrived
4. Interrogative Form
Have/has + S + V3 + ?
Example :
Has she arrived ?

Future Perfect Tense
Future perfect tense is used to describe something that will happen in the future

The Pattern :
1. Affirmative Form
S + will + have + V3
Example :
I will have swum at 11 tomorrow
2. Negative Form
S + will + not + have + V3
Example :
I will not have swum at 11 tomorrow
3. Interrogative Form
Will + S + have + V3 + ?
Will you have swum at 11 tomorrow

Past Perfect Tense
Past perfect tense is used to describe something that have done in the past

The Pattern :
1. Affirmative Form
S + had + V3
Example :
I had gone to Bali
2. Negative Form
S + had + not + V3
Example :
I hadn't gone to Bali
3. Interrogative Form
Had + S + V3 + ?
Had you gone to Bali ?