English verb conjugation
CAN HAVE

Irregular verb: have - had - had

Affirmation

Simple form	V-ing form
I can have you can have he can have we can have you can have they can have	I can be having you can be having he can be having we can be having you can be having they can be having
Perfect	V-ing perfect
I can have had you can have had he can have had we can have had you can have had they can have had	I can have been having you can have been having he can have been having we can have been having you can have been having they can have been having

Negation

Simple form	V-ing form
I cannot have you cannot have he cannot have we cannot have you cannot have they cannot have	I cannot be having you cannot be having he cannot be having we cannot be having you cannot be having they cannot be having
Perfect	V-ing perfect
I cannot have had you cannot have had he cannot have had we cannot have had you cannot have had they cannot have had	I cannot have been having you cannot have been having he cannot have been having we cannot have been having you cannot have been having they cannot have been having

Interrogative form

Simple form	V-ing form
can I have? can you have? can he have? can we have? can you have? can they have?	can I be having? can you be having? can he be having? can we be having? can you be having? can they be having?
Perfect	V-ing perfect
can I have had? can you have had? can he have had? can we have had? can you have had? can they have had?	can I have been having? can you have been having? can he have been having? can we have been having? can you have been having? can they have been having?

Interro-negative form

Simple form	V-ing form
can I not have? can you not have? can he not have? can we not have? can you not have? can they not have?	can I not be having? can you not be having? can he not be having? can we not be having? can you not be having? can they not be having?
Perfect	V-ing perfect
can I not have had? can you not have had? can he not have had? can we not have had? can you not have had? can they not have had?	can I not have been having? can you not have been having? can he not have been having? can we not have been having? can you not have been having? can they not have been having?