English verb conjugation
CAN HAVEN

Regular verb: haven - havened - havened

Affirmation

Simple form	V-ing form
I can haven you can haven she can haven we can haven you can haven they can haven	I can be havening you can be havening she can be havening we can be havening you can be havening they can be havening
Perfect	V-ing perfect
I can have havened you can have havened she can have havened we can have havened you can have havened they can have havened	I can have been havening you can have been havening she can have been havening we can have been havening you can have been havening they can have been havening

Negation

Simple form	V-ing form
I can't haven you can't haven she can't haven we can't haven you can't haven they can't haven	I can't be havening you can't be havening she can't be havening we can't be havening you can't be havening they can't be havening
Perfect	V-ing perfect
I can't have havened you can't have havened she can't have havened we can't have havened you can't have havened they can't have havened	I can't have been havening you can't have been havening she can't have been havening we can't have been havening you can't have been havening they can't have been havening

Interrogative form

Simple form	V-ing form
can I haven? can you haven? can she haven? can we haven? can you haven? can they haven?	can I be havening? can you be havening? can she be havening? can we be havening? can you be havening? can they be havening?
Perfect	V-ing perfect
can I have havened? can you have havened? can she have havened? can we have havened? can you have havened? can they have havened?	can I have been havening? can you have been havening? can she have been havening? can we have been havening? can you have been havening? can they have been havening?

Interro-negative form

Simple form	V-ing form
can't I haven? can't you haven? can't she haven? can't we haven? can't you haven? can't they haven?	can't I be havening? can't you be havening? can't she be havening? can't we be havening? can't you be havening? can't they be havening?
Perfect	V-ing perfect
can't I have havened? can't you have havened? can't she have havened? can't we have havened? can't you have havened? can't they have havened?	can't I have been havening? can't you have been havening? can't she have been havening? can't we have been havening? can't you have been havening? can't they have been havening?