English verb conjugation
CAN TRAILER

Regular verb: trailer - trailered - trailered

Affirmation

Simple form	V-ing form
I can trailer you can trailer he can trailer we can trailer you can trailer they can trailer	I can be trailering you can be trailering he can be trailering we can be trailering you can be trailering they can be trailering
Perfect	V-ing perfect
I can have trailered you can have trailered he can have trailered we can have trailered you can have trailered they can have trailered	I can have been trailering you can have been trailering he can have been trailering we can have been trailering you can have been trailering they can have been trailering

Negation

Simple form	V-ing form
I cannot trailer you cannot trailer he cannot trailer we cannot trailer you cannot trailer they cannot trailer	I cannot be trailering you cannot be trailering he cannot be trailering we cannot be trailering you cannot be trailering they cannot be trailering
Perfect	V-ing perfect
I cannot have trailered you cannot have trailered he cannot have trailered we cannot have trailered you cannot have trailered they cannot have trailered	I cannot have been trailering you cannot have been trailering he cannot have been trailering we cannot have been trailering you cannot have been trailering they cannot have been trailering

Interrogative form

Simple form	V-ing form
can I trailer? can you trailer? can he trailer? can we trailer? can you trailer? can they trailer?	can I be trailering? can you be trailering? can he be trailering? can we be trailering? can you be trailering? can they be trailering?
Perfect	V-ing perfect
can I have trailered? can you have trailered? can he have trailered? can we have trailered? can you have trailered? can they have trailered?	can I have been trailering? can you have been trailering? can he have been trailering? can we have been trailering? can you have been trailering? can they have been trailering?

Interro-negative form

Simple form	V-ing form
can I not trailer? can you not trailer? can he not trailer? can we not trailer? can you not trailer? can they not trailer?	can I not be trailering? can you not be trailering? can he not be trailering? can we not be trailering? can you not be trailering? can they not be trailering?
Perfect	V-ing perfect
can I not have trailered? can you not have trailered? can he not have trailered? can we not have trailered? can you not have trailered? can they not have trailered?	can I not have been trailering? can you not have been trailering? can he not have been trailering? can we not have been trailering? can you not have been trailering? can they not have been trailering?