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 cannot strap you cannot strap he cannot strap we cannot strap you cannot strap they cannot strap	I cannot be strapping you cannot be strapping he cannot be strapping we cannot be strapping you cannot be strapping they cannot be strapping
Perfect	V-ing perfect
I cannot have strapped you cannot have strapped he cannot have strapped we cannot have strapped you cannot have strapped they cannot have strapped	I cannot have been strapping you cannot have been strapping he cannot have been strapping we cannot have been strapping you cannot have been strapping they cannot 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 I not strap? can you not strap? can he not strap? can we not strap? can you not strap? can they not strap?	can I not be strapping? can you not be strapping? can he not be strapping? can we not be strapping? can you not be strapping? can they not be strapping?
Perfect	V-ing perfect
can I not have strapped? can you not have strapped? can he not have strapped? can we not have strapped? can you not have strapped? can they not have strapped?	can I not have been strapping? can you not have been strapping? can he not have been strapping? can we not have been strapping? can you not have been strapping? can they not have been strapping?