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 can't wave you can't wave he can't wave we can't wave you can't wave they can't wave	I can't be waving you can't be waving he can't be waving we can't be waving you can't be waving they can't be waving
Perfect	V-ing perfect
I can't have waved you can't have waved he can't have waved we can't have waved you can't have waved they can't have waved	I can't have been waving you can't have been waving he can't have been waving we can't have been waving you can't have been waving they can't 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't I wave? can't you wave? can't he wave? can't we wave? can't you wave? can't they wave?	can't I be waving? can't you be waving? can't he be waving? can't we be waving? can't you be waving? can't they be waving?
Perfect	V-ing perfect
can't I have waved? can't you have waved? can't he have waved? can't we have waved? can't you have waved? can't they have waved?	can't I have been waving? can't you have been waving? can't he have been waving? can't we have been waving? can't you have been waving? can't they have been waving?