English verb conjugation
CAN CONTAIN

Regular verb: contain - contained - contained

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?