can ceil
Regular verb: ceil - ceiled- ceiled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I cannot ceil
you cannot ceil
he cannot ceil
we cannot ceil
you cannot ceil
they cannot ceil 	I cannot be ceiling
you cannot be ceiling
he cannot be ceiling
we cannot be ceiling
you cannot be ceiling
they cannot be ceiling	I cannot have ceiled
you cannot have ceiled
he cannot have ceiled
we cannot have ceiled
you cannot have ceiled
they cannot have ceiled	I cannot have been ceiling
you cannot have been ceiling
he cannot have been ceiling
we cannot have been ceiling
you cannot have been ceiling
they cannot have been ceiling	

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