English verb conjugation
CAN COCHAIR

Regular verb: cochair - cochaired - cochaired

Affirmation

Simple form	V-ing form
I can cochair you can cochair he can cochair we can cochair you can cochair they can cochair	I can be cochairing you can be cochairing he can be cochairing we can be cochairing you can be cochairing they can be cochairing
Perfect	V-ing perfect
I can have cochaired you can have cochaired he can have cochaired we can have cochaired you can have cochaired they can have cochaired	I can have been cochairing you can have been cochairing he can have been cochairing we can have been cochairing you can have been cochairing they can have been cochairing

Negation

Simple form	V-ing form
I cannot cochair you cannot cochair he cannot cochair we cannot cochair you cannot cochair they cannot cochair	I cannot be cochairing you cannot be cochairing he cannot be cochairing we cannot be cochairing you cannot be cochairing they cannot be cochairing
Perfect	V-ing perfect
I cannot have cochaired you cannot have cochaired he cannot have cochaired we cannot have cochaired you cannot have cochaired they cannot have cochaired	I cannot have been cochairing you cannot have been cochairing he cannot have been cochairing we cannot have been cochairing you cannot have been cochairing they cannot have been cochairing

Interrogative form

Simple form	V-ing form
can I cochair? can you cochair? can he cochair? can we cochair? can you cochair? can they cochair?	can I be cochairing? can you be cochairing? can he be cochairing? can we be cochairing? can you be cochairing? can they be cochairing?
Perfect	V-ing perfect
can I have cochaired? can you have cochaired? can he have cochaired? can we have cochaired? can you have cochaired? can they have cochaired?	can I have been cochairing? can you have been cochairing? can he have been cochairing? can we have been cochairing? can you have been cochairing? can they have been cochairing?

Interro-negative form

Simple form	V-ing form
can I not cochair? can you not cochair? can he not cochair? can we not cochair? can you not cochair? can they not cochair?	can I not be cochairing? can you not be cochairing? can he not be cochairing? can we not be cochairing? can you not be cochairing? can they not be cochairing?
Perfect	V-ing perfect
can I not have cochaired? can you not have cochaired? can he not have cochaired? can we not have cochaired? can you not have cochaired? can they not have cochaired?	can I not have been cochairing? can you not have been cochairing? can he not have been cochairing? can we not have been cochairing? can you not have been cochairing? can they not have been cochairing?