English verb conjugation
CAN INVOKE

Regular verb: invoke - invoked - invoked

Affirmation

Simple form	V-ing form
I can invoke you can invoke she can invoke we can invoke you can invoke they can invoke	I can be invoking you can be invoking she 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 she 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 she 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 she cannot invoke we cannot invoke you cannot invoke they cannot invoke	I cannot be invoking you cannot be invoking she 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 she 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 she 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 she invoke? can we invoke? can you invoke? can they invoke?	can I be invoking? can you be invoking? can she 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 she 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 she 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 she 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 she 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 she 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 she not have been invoking? can we not have been invoking? can you not have been invoking? can they not have been invoking?