What is the difference between "have had" and "had"?
47662
Present perfect for past action with present effect
90495
Have lived vs. Have been living
32288
'Country have' vs 'country has'
149189
"I have been 'verb-ing'" vs. "I had been 'verb-ing'"
10955
Past simple vs present perfect
64359
to finish vs. to have finished
105011
Which is the correct question ("Who has" vs "Who have")?
89834
"I who has" vs "I who have."
23936
Is it appropriate to use short form of "have" ('ve) when it means possession?
4548
“have found” vs. “found”
107985
Had done / had been doing
158606
"Had better" — what is the meaning of this grammatically?
119517
What's the difference between the simple past tense and the present perfect?
125890
Difference between "does have" and "has"
93810
How is "I have come" + infinitive different from Present Perfect?
55834
"is being" vs "has been"
82080
"Of" being used instead of "have"