English verb conjugation
CAN WAVE

Regular verb: wave - waved - waved

Affirmation

Simple form	V-ing form
I can wave you can wave he can wave we can wave you can wave they can wave	I can be waving you can be waving he can be waving we can be waving you can be waving they can be waving
Perfect	V-ing perfect
I can have waved you can have waved he can have waved we can have waved you can have waved they can have waved	I can have been waving you can have been waving he can have been waving we can have been waving you can have been waving they can have been waving

Negation

Simple form	V-ing form
I cannot wave you cannot wave he cannot wave we cannot wave you cannot wave they cannot wave	I cannot be waving you cannot be waving he cannot be waving we cannot be waving you cannot be waving they cannot be waving
Perfect	V-ing perfect
I cannot have waved you cannot have waved he cannot have waved we cannot have waved you cannot have waved they cannot have waved	I cannot have been waving you cannot have been waving he cannot have been waving we cannot have been waving you cannot have been waving they cannot have been waving

Interrogative form

Simple form	V-ing form
can I wave? can you wave? can he wave? can we wave? can you wave? can they wave?	can I be waving? can you be waving? can he be waving? can we be waving? can you be waving? can they be waving?
Perfect	V-ing perfect
can I have waved? can you have waved? can he have waved? can we have waved? can you have waved? can they have waved?	can I have been waving? can you have been waving? can he have been waving? can we have been waving? can you have been waving? can they have been waving?

Interro-negative form

Simple form	V-ing form
can I not wave? can you not wave? can he not wave? can we not wave? can you not wave? can they not wave?	can I not be waving? can you not be waving? can he not be waving? can we not be waving? can you not be waving? can they not be waving?
Perfect	V-ing perfect
can I not have waved? can you not have waved? can he not have waved? can we not have waved? can you not have waved? can they not have waved?	can I not have been waving? can you not have been waving? can he not have been waving? can we not have been waving? can you not have been waving? can they not have been waving?