English verb conjugation
MUST SUFFOCATE

Regular verb: suffocate - suffocated - suffocated

Affirmation

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

Negation

Simple form	V-ing form
I mustn't suffocate you mustn't suffocate she mustn't suffocate we mustn't suffocate you mustn't suffocate they mustn't suffocate	I mustn't be suffocating you mustn't be suffocating she mustn't be suffocating we mustn't be suffocating you mustn't be suffocating they mustn't be suffocating
Perfect	V-ing perfect
I mustn't have suffocated you mustn't have suffocated she mustn't have suffocated we mustn't have suffocated you mustn't have suffocated they mustn't have suffocated	I mustn't have been suffocating you mustn't have been suffocating she mustn't have been suffocating we mustn't have been suffocating you mustn't have been suffocating they mustn't have been suffocating

Interrogative form

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

Interro-negative form

Simple form	V-ing form
mustn't I suffocate? mustn't you suffocate? mustn't she suffocate? mustn't we suffocate? mustn't you suffocate? mustn't they suffocate?	mustn't I be suffocating? mustn't you be suffocating? mustn't she be suffocating? mustn't we be suffocating? mustn't you be suffocating? mustn't they be suffocating?
Perfect	V-ing perfect
mustn't I have suffocated? mustn't you have suffocated? mustn't she have suffocated? mustn't we have suffocated? mustn't you have suffocated? mustn't they have suffocated?	mustn't I have been suffocating? mustn't you have been suffocating? mustn't she have been suffocating? mustn't we have been suffocating? mustn't you have been suffocating? mustn't they have been suffocating?