English verb conjugation
CAN ASSIGN

Regular verb: assign - assigned - assigned

Affirmation

Simple form	V-ing form
I can assign you can assign he can assign we can assign you can assign they can assign	I can be assigning you can be assigning he can be assigning we can be assigning you can be assigning they can be assigning
Perfect	V-ing perfect
I can have assigned you can have assigned he can have assigned we can have assigned you can have assigned they can have assigned	I can have been assigning you can have been assigning he can have been assigning we can have been assigning you can have been assigning they can have been assigning

Negation

Simple form	V-ing form
I can't assign you can't assign he can't assign we can't assign you can't assign they can't assign	I can't be assigning you can't be assigning he can't be assigning we can't be assigning you can't be assigning they can't be assigning
Perfect	V-ing perfect
I can't have assigned you can't have assigned he can't have assigned we can't have assigned you can't have assigned they can't have assigned	I can't have been assigning you can't have been assigning he can't have been assigning we can't have been assigning you can't have been assigning they can't have been assigning

Interrogative form

Simple form	V-ing form
can I assign? can you assign? can he assign? can we assign? can you assign? can they assign?	can I be assigning? can you be assigning? can he be assigning? can we be assigning? can you be assigning? can they be assigning?
Perfect	V-ing perfect
can I have assigned? can you have assigned? can he have assigned? can we have assigned? can you have assigned? can they have assigned?	can I have been assigning? can you have been assigning? can he have been assigning? can we have been assigning? can you have been assigning? can they have been assigning?

Interro-negative form

Simple form	V-ing form
can't I assign? can't you assign? can't he assign? can't we assign? can't you assign? can't they assign?	can't I be assigning? can't you be assigning? can't he be assigning? can't we be assigning? can't you be assigning? can't they be assigning?
Perfect	V-ing perfect
can't I have assigned? can't you have assigned? can't he have assigned? can't we have assigned? can't you have assigned? can't they have assigned?	can't I have been assigning? can't you have been assigning? can't he have been assigning? can't we have been assigning? can't you have been assigning? can't they have been assigning?