English verb conjugation
CAN CONFER

Regular verb: confer - conferred - conferred

Affirmation

Simple form	V-ing form
I can confer you can confer he can confer we can confer you can confer they can confer	I can be conferring you can be conferring he can be conferring we can be conferring you can be conferring they can be conferring
Perfect	V-ing perfect
I can have conferred you can have conferred he can have conferred we can have conferred you can have conferred they can have conferred	I can have been conferring you can have been conferring he can have been conferring we can have been conferring you can have been conferring they can have been conferring

Negation

Simple form	V-ing form
I can't confer you can't confer he can't confer we can't confer you can't confer they can't confer	I can't be conferring you can't be conferring he can't be conferring we can't be conferring you can't be conferring they can't be conferring
Perfect	V-ing perfect
I can't have conferred you can't have conferred he can't have conferred we can't have conferred you can't have conferred they can't have conferred	I can't have been conferring you can't have been conferring he can't have been conferring we can't have been conferring you can't have been conferring they can't have been conferring

Interrogative form

Simple form	V-ing form
can I confer? can you confer? can he confer? can we confer? can you confer? can they confer?	can I be conferring? can you be conferring? can he be conferring? can we be conferring? can you be conferring? can they be conferring?
Perfect	V-ing perfect
can I have conferred? can you have conferred? can he have conferred? can we have conferred? can you have conferred? can they have conferred?	can I have been conferring? can you have been conferring? can he have been conferring? can we have been conferring? can you have been conferring? can they have been conferring?

Interro-negative form

Simple form	V-ing form
can't I confer? can't you confer? can't he confer? can't we confer? can't you confer? can't they confer?	can't I be conferring? can't you be conferring? can't he be conferring? can't we be conferring? can't you be conferring? can't they be conferring?
Perfect	V-ing perfect
can't I have conferred? can't you have conferred? can't he have conferred? can't we have conferred? can't you have conferred? can't they have conferred?	can't I have been conferring? can't you have been conferring? can't he have been conferring? can't we have been conferring? can't you have been conferring? can't they have been conferring?