English verb conjugation
CAN LEER

Regular verb: leer - leered - leered

Affirmation

Simple form	V-ing form
I can leer you can leer he can leer we can leer you can leer they can leer	I can be leering you can be leering he can be leering we can be leering you can be leering they can be leering
Perfect	V-ing perfect
I can have leered you can have leered he can have leered we can have leered you can have leered they can have leered	I can have been leering you can have been leering he can have been leering we can have been leering you can have been leering they can have been leering

Negation

Simple form	V-ing form
I cannot leer you cannot leer he cannot leer we cannot leer you cannot leer they cannot leer	I cannot be leering you cannot be leering he cannot be leering we cannot be leering you cannot be leering they cannot be leering
Perfect	V-ing perfect
I cannot have leered you cannot have leered he cannot have leered we cannot have leered you cannot have leered they cannot have leered	I cannot have been leering you cannot have been leering he cannot have been leering we cannot have been leering you cannot have been leering they cannot have been leering

Interrogative form

Simple form	V-ing form
can I leer? can you leer? can he leer? can we leer? can you leer? can they leer?	can I be leering? can you be leering? can he be leering? can we be leering? can you be leering? can they be leering?
Perfect	V-ing perfect
can I have leered? can you have leered? can he have leered? can we have leered? can you have leered? can they have leered?	can I have been leering? can you have been leering? can he have been leering? can we have been leering? can you have been leering? can they have been leering?

Interro-negative form

Simple form	V-ing form
can I not leer? can you not leer? can he not leer? can we not leer? can you not leer? can they not leer?	can I not be leering? can you not be leering? can he not be leering? can we not be leering? can you not be leering? can they not be leering?
Perfect	V-ing perfect
can I not have leered? can you not have leered? can he not have leered? can we not have leered? can you not have leered? can they not have leered?	can I not have been leering? can you not have been leering? can he not have been leering? can we not have been leering? can you not have been leering? can they not have been leering?