English verb conjugation
CAN PHONE

Regular verb: phone - phoned - phoned

Affirmation

Simple form	V-ing form
I can phone you can phone he can phone we can phone you can phone they can phone	I can be phoning you can be phoning he can be phoning we can be phoning you can be phoning they can be phoning
Perfect	V-ing perfect
I can have phoned you can have phoned he can have phoned we can have phoned you can have phoned they can have phoned	I can have been phoning you can have been phoning he can have been phoning we can have been phoning you can have been phoning they can have been phoning

Negation

Simple form	V-ing form
I cannot phone you cannot phone he cannot phone we cannot phone you cannot phone they cannot phone	I cannot be phoning you cannot be phoning he cannot be phoning we cannot be phoning you cannot be phoning they cannot be phoning
Perfect	V-ing perfect
I cannot have phoned you cannot have phoned he cannot have phoned we cannot have phoned you cannot have phoned they cannot have phoned	I cannot have been phoning you cannot have been phoning he cannot have been phoning we cannot have been phoning you cannot have been phoning they cannot have been phoning

Interrogative form

Simple form	V-ing form
can I phone? can you phone? can he phone? can we phone? can you phone? can they phone?	can I be phoning? can you be phoning? can he be phoning? can we be phoning? can you be phoning? can they be phoning?
Perfect	V-ing perfect
can I have phoned? can you have phoned? can he have phoned? can we have phoned? can you have phoned? can they have phoned?	can I have been phoning? can you have been phoning? can he have been phoning? can we have been phoning? can you have been phoning? can they have been phoning?

Interro-negative form

Simple form	V-ing form
can I not phone? can you not phone? can he not phone? can we not phone? can you not phone? can they not phone?	can I not be phoning? can you not be phoning? can he not be phoning? can we not be phoning? can you not be phoning? can they not be phoning?
Perfect	V-ing perfect
can I not have phoned? can you not have phoned? can he not have phoned? can we not have phoned? can you not have phoned? can they not have phoned?	can I not have been phoning? can you not have been phoning? can he not have been phoning? can we not have been phoning? can you not have been phoning? can they not have been phoning?