English verb conjugation
CAN TELEPHONE

Regular verb: telephone - telephoned - telephoned

Affirmation

Simple form	V-ing form
I can telephone you can telephone she can telephone we can telephone you can telephone they can telephone	I can be telephoning you can be telephoning she can be telephoning we can be telephoning you can be telephoning they can be telephoning
Perfect	V-ing perfect
I can have telephoned you can have telephoned she can have telephoned we can have telephoned you can have telephoned they can have telephoned	I can have been telephoning you can have been telephoning she can have been telephoning we can have been telephoning you can have been telephoning they can have been telephoning

Negation

Simple form	V-ing form
I cannot telephone you cannot telephone she cannot telephone we cannot telephone you cannot telephone they cannot telephone	I cannot be telephoning you cannot be telephoning she cannot be telephoning we cannot be telephoning you cannot be telephoning they cannot be telephoning
Perfect	V-ing perfect
I cannot have telephoned you cannot have telephoned she cannot have telephoned we cannot have telephoned you cannot have telephoned they cannot have telephoned	I cannot have been telephoning you cannot have been telephoning she cannot have been telephoning we cannot have been telephoning you cannot have been telephoning they cannot have been telephoning

Interrogative form

Simple form	V-ing form
can I telephone? can you telephone? can she telephone? can we telephone? can you telephone? can they telephone?	can I be telephoning? can you be telephoning? can she be telephoning? can we be telephoning? can you be telephoning? can they be telephoning?
Perfect	V-ing perfect
can I have telephoned? can you have telephoned? can she have telephoned? can we have telephoned? can you have telephoned? can they have telephoned?	can I have been telephoning? can you have been telephoning? can she have been telephoning? can we have been telephoning? can you have been telephoning? can they have been telephoning?

Interro-negative form

Simple form	V-ing form
can I not telephone? can you not telephone? can she not telephone? can we not telephone? can you not telephone? can they not telephone?	can I not be telephoning? can you not be telephoning? can she not be telephoning? can we not be telephoning? can you not be telephoning? can they not be telephoning?
Perfect	V-ing perfect
can I not have telephoned? can you not have telephoned? can she not have telephoned? can we not have telephoned? can you not have telephoned? can they not have telephoned?	can I not have been telephoning? can you not have been telephoning? can she not have been telephoning? can we not have been telephoning? can you not have been telephoning? can they not have been telephoning?