can contain
Regular verb: contain - contained- contained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can contain
you can contain
he can contain
we can contain
you can contain
they can contain 	I can be containing
you can be containing
he can be containing
we can be containing
you can be containing
they can be containing	I can have contained
you can have contained
he can have contained
we can have contained
you can have contained
they can have contained	I can have been containing
you can have been containing
he can have been containing
we can have been containing
you can have been containing
they can have been containing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot contain
you cannot contain
he cannot contain
we cannot contain
you cannot contain
they cannot contain 	I cannot be containing
you cannot be containing
he cannot be containing
we cannot be containing
you cannot be containing
they cannot be containing	I cannot have contained
you cannot have contained
he cannot have contained
we cannot have contained
you cannot have contained
they cannot have contained	I cannot have been containing
you cannot have been containing
he cannot have been containing
we cannot have been containing
you cannot have been containing
they cannot have been containing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I contain?
can you contain?
can he contain?
can we contain?
can you contain?
can they contain? 	can I be containing?
can you be containing?
can he be containing?
can we be containing?
can you be containing?
can they be containing? 	can I have contained?
can you have contained?
can he have contained?
can we have contained?
can you have contained?
can they have contained? 	can I have been containing?
can you have been containing?
can he have been containing?
can we have been containing?
can you have been containing?
can they have been containing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not contain?
can you not contain?
can he not contain?
can we not contain?
can you not contain?
can they not contain? 	can I not be containing?
can you not be containing?
can he not be containing?
can we not be containing?
can you not be containing?
can they not be containing? 	can I not have contained?
can you not have contained?
can he not have contained?
can we not have contained?
can you not have contained?
can they not have contained? 	can I not have been containing?
can you not have been containing?
can he not have been containing?
can we not have been containing?
can you not have been containing?
can they not have been containing?