English verb conjugation
CAN INVOKE

Regular verb: invoke - invoked - invoked

Affirmation

Simple form	V-ing form
I can invoke you can invoke he can invoke we can invoke you can invoke they can invoke	I can be invoking you can be invoking he can be invoking we can be invoking you can be invoking they can be invoking
Perfect	V-ing perfect
I can have invoked you can have invoked he can have invoked we can have invoked you can have invoked they can have invoked	I can have been invoking you can have been invoking he can have been invoking we can have been invoking you can have been invoking they can have been invoking

Negation

Simple form	V-ing form
I cannot invoke you cannot invoke he cannot invoke we cannot invoke you cannot invoke they cannot invoke	I cannot be invoking you cannot be invoking he cannot be invoking we cannot be invoking you cannot be invoking they cannot be invoking
Perfect	V-ing perfect
I cannot have invoked you cannot have invoked he cannot have invoked we cannot have invoked you cannot have invoked they cannot have invoked	I cannot have been invoking you cannot have been invoking he cannot have been invoking we cannot have been invoking you cannot have been invoking they cannot have been invoking

Interrogative form

Simple form	V-ing form
can I invoke? can you invoke? can he invoke? can we invoke? can you invoke? can they invoke?	can I be invoking? can you be invoking? can he be invoking? can we be invoking? can you be invoking? can they be invoking?
Perfect	V-ing perfect
can I have invoked? can you have invoked? can he have invoked? can we have invoked? can you have invoked? can they have invoked?	can I have been invoking? can you have been invoking? can he have been invoking? can we have been invoking? can you have been invoking? can they have been invoking?

Interro-negative form

Simple form	V-ing form
can I not invoke? can you not invoke? can he not invoke? can we not invoke? can you not invoke? can they not invoke?	can I not be invoking? can you not be invoking? can he not be invoking? can we not be invoking? can you not be invoking? can they not be invoking?
Perfect	V-ing perfect
can I not have invoked? can you not have invoked? can he not have invoked? can we not have invoked? can you not have invoked? can they not have invoked?	can I not have been invoking? can you not have been invoking? can he not have been invoking? can we not have been invoking? can you not have been invoking? can they not have been invoking?