English verb conjugation
CAN NICKNAME

Regular verb: nickname - nicknamed - nicknamed

Affirmation

Simple form	V-ing form
I can nickname you can nickname he can nickname we can nickname you can nickname they can nickname	I can be nicknaming you can be nicknaming he can be nicknaming we can be nicknaming you can be nicknaming they can be nicknaming
Perfect	V-ing perfect
I can have nicknamed you can have nicknamed he can have nicknamed we can have nicknamed you can have nicknamed they can have nicknamed	I can have been nicknaming you can have been nicknaming he can have been nicknaming we can have been nicknaming you can have been nicknaming they can have been nicknaming

Negation

Simple form	V-ing form
I cannot nickname you cannot nickname he cannot nickname we cannot nickname you cannot nickname they cannot nickname	I cannot be nicknaming you cannot be nicknaming he cannot be nicknaming we cannot be nicknaming you cannot be nicknaming they cannot be nicknaming
Perfect	V-ing perfect
I cannot have nicknamed you cannot have nicknamed he cannot have nicknamed we cannot have nicknamed you cannot have nicknamed they cannot have nicknamed	I cannot have been nicknaming you cannot have been nicknaming he cannot have been nicknaming we cannot have been nicknaming you cannot have been nicknaming they cannot have been nicknaming

Interrogative form

Simple form	V-ing form
can I nickname? can you nickname? can he nickname? can we nickname? can you nickname? can they nickname?	can I be nicknaming? can you be nicknaming? can he be nicknaming? can we be nicknaming? can you be nicknaming? can they be nicknaming?
Perfect	V-ing perfect
can I have nicknamed? can you have nicknamed? can he have nicknamed? can we have nicknamed? can you have nicknamed? can they have nicknamed?	can I have been nicknaming? can you have been nicknaming? can he have been nicknaming? can we have been nicknaming? can you have been nicknaming? can they have been nicknaming?

Interro-negative form

Simple form	V-ing form
can I not nickname? can you not nickname? can he not nickname? can we not nickname? can you not nickname? can they not nickname?	can I not be nicknaming? can you not be nicknaming? can he not be nicknaming? can we not be nicknaming? can you not be nicknaming? can they not be nicknaming?
Perfect	V-ing perfect
can I not have nicknamed? can you not have nicknamed? can he not have nicknamed? can we not have nicknamed? can you not have nicknamed? can they not have nicknamed?	can I not have been nicknaming? can you not have been nicknaming? can he not have been nicknaming? can we not have been nicknaming? can you not have been nicknaming? can they not have been nicknaming?