English verb conjugation
CAN CEIL

Regular verb: ceil - ceiled - ceiled

Affirmation

Simple form	V-ing form
I can ceil you can ceil he can ceil we can ceil you can ceil they can ceil	I can be ceiling you can be ceiling he can be ceiling we can be ceiling you can be ceiling they can be ceiling
Perfect	V-ing perfect
I can have ceiled you can have ceiled he can have ceiled we can have ceiled you can have ceiled they can have ceiled	I can have been ceiling you can have been ceiling he can have been ceiling we can have been ceiling you can have been ceiling they can have been ceiling

Negation

Simple form	V-ing form
I can't ceil you can't ceil he can't ceil we can't ceil you can't ceil they can't ceil	I can't be ceiling you can't be ceiling he can't be ceiling we can't be ceiling you can't be ceiling they can't be ceiling
Perfect	V-ing perfect
I can't have ceiled you can't have ceiled he can't have ceiled we can't have ceiled you can't have ceiled they can't have ceiled	I can't have been ceiling you can't have been ceiling he can't have been ceiling we can't have been ceiling you can't have been ceiling they can't have been ceiling

Interrogative form

Simple form	V-ing form
can I ceil? can you ceil? can he ceil? can we ceil? can you ceil? can they ceil?	can I be ceiling? can you be ceiling? can he be ceiling? can we be ceiling? can you be ceiling? can they be ceiling?
Perfect	V-ing perfect
can I have ceiled? can you have ceiled? can he have ceiled? can we have ceiled? can you have ceiled? can they have ceiled?	can I have been ceiling? can you have been ceiling? can he have been ceiling? can we have been ceiling? can you have been ceiling? can they have been ceiling?

Interro-negative form

Simple form	V-ing form
can't I ceil? can't you ceil? can't he ceil? can't we ceil? can't you ceil? can't they ceil?	can't I be ceiling? can't you be ceiling? can't he be ceiling? can't we be ceiling? can't you be ceiling? can't they be ceiling?
Perfect	V-ing perfect
can't I have ceiled? can't you have ceiled? can't he have ceiled? can't we have ceiled? can't you have ceiled? can't they have ceiled?	can't I have been ceiling? can't you have been ceiling? can't he have been ceiling? can't we have been ceiling? can't you have been ceiling? can't they have been ceiling?