English verb conjugation
CAN SUFFOCATE

Regular verb: suffocate - suffocated - suffocated

Affirmation

Simple form	V-ing form
I can suffocate you can suffocate he can suffocate we can suffocate you can suffocate they can suffocate	I can be suffocating you can be suffocating he can be suffocating we can be suffocating you can be suffocating they can be suffocating
Perfect	V-ing perfect
I can have suffocated you can have suffocated he can have suffocated we can have suffocated you can have suffocated they can have suffocated	I can have been suffocating you can have been suffocating he can have been suffocating we can have been suffocating you can have been suffocating they can have been suffocating

Negation

Simple form	V-ing form
I cannot suffocate you cannot suffocate he cannot suffocate we cannot suffocate you cannot suffocate they cannot suffocate	I cannot be suffocating you cannot be suffocating he cannot be suffocating we cannot be suffocating you cannot be suffocating they cannot be suffocating
Perfect	V-ing perfect
I cannot have suffocated you cannot have suffocated he cannot have suffocated we cannot have suffocated you cannot have suffocated they cannot have suffocated	I cannot have been suffocating you cannot have been suffocating he cannot have been suffocating we cannot have been suffocating you cannot have been suffocating they cannot have been suffocating

Interrogative form

Simple form	V-ing form
can I suffocate? can you suffocate? can he suffocate? can we suffocate? can you suffocate? can they suffocate?	can I be suffocating? can you be suffocating? can he be suffocating? can we be suffocating? can you be suffocating? can they be suffocating?
Perfect	V-ing perfect
can I have suffocated? can you have suffocated? can he have suffocated? can we have suffocated? can you have suffocated? can they have suffocated?	can I have been suffocating? can you have been suffocating? can he have been suffocating? can we have been suffocating? can you have been suffocating? can they have been suffocating?

Interro-negative form

Simple form	V-ing form
can I not suffocate? can you not suffocate? can he not suffocate? can we not suffocate? can you not suffocate? can they not suffocate?	can I not be suffocating? can you not be suffocating? can he not be suffocating? can we not be suffocating? can you not be suffocating? can they not be suffocating?
Perfect	V-ing perfect
can I not have suffocated? can you not have suffocated? can he not have suffocated? can we not have suffocated? can you not have suffocated? can they not have suffocated?	can I not have been suffocating? can you not have been suffocating? can he not have been suffocating? can we not have been suffocating? can you not have been suffocating? can they not have been suffocating?