English verb conjugation
CAN STRAP

Regular verb: strap - strapped - strapped

Affirmation

Simple form	V-ing form
I can strap you can strap he can strap we can strap you can strap they can strap	I can be strapping you can be strapping he can be strapping we can be strapping you can be strapping they can be strapping
Perfect	V-ing perfect
I can have strapped you can have strapped he can have strapped we can have strapped you can have strapped they can have strapped	I can have been strapping you can have been strapping he can have been strapping we can have been strapping you can have been strapping they can have been strapping

Negation

Simple form	V-ing form
I can't strap you can't strap he can't strap we can't strap you can't strap they can't strap	I can't be strapping you can't be strapping he can't be strapping we can't be strapping you can't be strapping they can't be strapping
Perfect	V-ing perfect
I can't have strapped you can't have strapped he can't have strapped we can't have strapped you can't have strapped they can't have strapped	I can't have been strapping you can't have been strapping he can't have been strapping we can't have been strapping you can't have been strapping they can't have been strapping

Interrogative form

Simple form	V-ing form
can I strap? can you strap? can he strap? can we strap? can you strap? can they strap?	can I be strapping? can you be strapping? can he be strapping? can we be strapping? can you be strapping? can they be strapping?
Perfect	V-ing perfect
can I have strapped? can you have strapped? can he have strapped? can we have strapped? can you have strapped? can they have strapped?	can I have been strapping? can you have been strapping? can he have been strapping? can we have been strapping? can you have been strapping? can they have been strapping?

Interro-negative form

Simple form	V-ing form
can't I strap? can't you strap? can't he strap? can't we strap? can't you strap? can't they strap?	can't I be strapping? can't you be strapping? can't he be strapping? can't we be strapping? can't you be strapping? can't they be strapping?
Perfect	V-ing perfect
can't I have strapped? can't you have strapped? can't he have strapped? can't we have strapped? can't you have strapped? can't they have strapped?	can't I have been strapping? can't you have been strapping? can't he have been strapping? can't we have been strapping? can't you have been strapping? can't they have been strapping?