I can quintuplicate you can quintuplicate he can quintuplicate we can quintuplicate you can quintuplicate they can quintuplicate
V-ing form
I can be quintuplicating you can be quintuplicating he can be quintuplicating we can be quintuplicating you can be quintuplicating they can be quintuplicating
Perfect
I can have quintuplicated you can have quintuplicated he can have quintuplicated we can have quintuplicated you can have quintuplicated they can have quintuplicated
V-ing perfect
I can have been quintuplicating you can have been quintuplicating he can have been quintuplicating we can have been quintuplicating you can have been quintuplicating they can have been quintuplicating
Negation
Simple form
I can't quintuplicate you can't quintuplicate he can't quintuplicate we can't quintuplicate you can't quintuplicate they can't quintuplicate
V-ing form
I can't be quintuplicating you can't be quintuplicating he can't be quintuplicating we can't be quintuplicating you can't be quintuplicating they can't be quintuplicating
Perfect
I can't have quintuplicated you can't have quintuplicated he can't have quintuplicated we can't have quintuplicated you can't have quintuplicated they can't have quintuplicated
V-ing perfect
I can't have been quintuplicating you can't have been quintuplicating he can't have been quintuplicating we can't have been quintuplicating you can't have been quintuplicating they can't have been quintuplicating
Interrogative form
Simple form
can I quintuplicate? can you quintuplicate? can he quintuplicate? can we quintuplicate? can you quintuplicate? can they quintuplicate?
V-ing form
can I be quintuplicating? can you be quintuplicating? can he be quintuplicating? can we be quintuplicating? can you be quintuplicating? can they be quintuplicating?
Perfect
can I have quintuplicated? can you have quintuplicated? can he have quintuplicated? can we have quintuplicated? can you have quintuplicated? can they have quintuplicated?
V-ing perfect
can I have been quintuplicating? can you have been quintuplicating? can he have been quintuplicating? can we have been quintuplicating? can you have been quintuplicating? can they have been quintuplicating?
Interro-negative form
Simple form
can't I quintuplicate? can't you quintuplicate? can't he quintuplicate? can't we quintuplicate? can't you quintuplicate? can't they quintuplicate?
V-ing form
can't I be quintuplicating? can't you be quintuplicating? can't he be quintuplicating? can't we be quintuplicating? can't you be quintuplicating? can't they be quintuplicating?
Perfect
can't I have quintuplicated? can't you have quintuplicated? can't he have quintuplicated? can't we have quintuplicated? can't you have quintuplicated? can't they have quintuplicated?
V-ing perfect
can't I have been quintuplicating? can't you have been quintuplicating? can't he have been quintuplicating? can't we have been quintuplicating? can't you have been quintuplicating? can't they have been quintuplicating?