The document discusses the different tenses of the perfect verb forms in English including the present perfect simple, present perfect continuous, past perfect, and future perfect. It provides the basic structure for each tense, including the subject, auxiliary verb, main verb, and examples of affirmative, negative and question forms.

1. PERFECTS
PRESENT PERFECT SIMPLE
Sub + have/has + verb (past participle)
Affirmative has: he, she. It + verb (past participle)
Have: I, You, We, They
Negative has + not + verb (past participle)
Have
Question has first + verb (past participle)?
Have
PRESENT PERFECT CONTINUOUS
Sub + have/has + verb to be + verb + Ing
(Past participle)
Affirmative has + been + verb + ing
Have
Negative has + not + been + verb + ing
Have
Question has first + verb (past participle)?
Have
PAST PERFECT
Sub + to have + verb (past
participle)
(Had)
Affirmative had: I, he, she. It + verb (past participle)
You, We, they
Negative had + not + verb (past participle)
Question had first ?
FUTURE PERFECT
Sub + Will + have + verb (past participle)