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 can't trailer you can't trailer he can't trailer we can't trailer you can't trailer they can't trailer	I can't be trailering you can't be trailering he can't be trailering we can't be trailering you can't be trailering they can't be trailering
Perfect	V-ing perfect
I can't have trailered you can't have trailered he can't have trailered we can't have trailered you can't have trailered they can't have trailered	I can't have been trailering you can't have been trailering he can't have been trailering we can't have been trailering you can't have been trailering they can't 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't I trailer? can't you trailer? can't he trailer? can't we trailer? can't you trailer? can't they trailer?	can't I be trailering? can't you be trailering? can't he be trailering? can't we be trailering? can't you be trailering? can't they be trailering?
Perfect	V-ing perfect
can't I have trailered? can't you have trailered? can't he have trailered? can't we have trailered? can't you have trailered? can't they have trailered?	can't I have been trailering? can't you have been trailering? can't he have been trailering? can't we have been trailering? can't you have been trailering? can't they have been trailering?