English verb conjugation
MUST DRINK

Irregular verb: drink - drank - drunk

Affirmation

Simple form	V-ing form
I must drink you must drink she must drink we must drink you must drink they must drink	I must be drinking you must be drinking she must be drinking we must be drinking you must be drinking they must be drinking
Perfect	V-ing perfect
I must have drunk you must have drunk she must have drunk we must have drunk you must have drunk they must have drunk	I must have been drinking you must have been drinking she must have been drinking we must have been drinking you must have been drinking they must have been drinking

Negation

Simple form	V-ing form
I mustn't drink you mustn't drink she mustn't drink we mustn't drink you mustn't drink they mustn't drink	I mustn't be drinking you mustn't be drinking she mustn't be drinking we mustn't be drinking you mustn't be drinking they mustn't be drinking
Perfect	V-ing perfect
I mustn't have drunk you mustn't have drunk she mustn't have drunk we mustn't have drunk you mustn't have drunk they mustn't have drunk	I mustn't have been drinking you mustn't have been drinking she mustn't have been drinking we mustn't have been drinking you mustn't have been drinking they mustn't have been drinking

Interrogative form

Simple form	V-ing form
must I drink? must you drink? must she drink? must we drink? must you drink? must they drink?	must I be drinking? must you be drinking? must she be drinking? must we be drinking? must you be drinking? must they be drinking?
Perfect	V-ing perfect
must I have drunk? must you have drunk? must she have drunk? must we have drunk? must you have drunk? must they have drunk?	must I have been drinking? must you have been drinking? must she have been drinking? must we have been drinking? must you have been drinking? must they have been drinking?

Interro-negative form

Simple form	V-ing form
mustn't I drink? mustn't you drink? mustn't she drink? mustn't we drink? mustn't you drink? mustn't they drink?	mustn't I be drinking? mustn't you be drinking? mustn't she be drinking? mustn't we be drinking? mustn't you be drinking? mustn't they be drinking?
Perfect	V-ing perfect
mustn't I have drunk? mustn't you have drunk? mustn't she have drunk? mustn't we have drunk? mustn't you have drunk? mustn't they have drunk?	mustn't I have been drinking? mustn't you have been drinking? mustn't she have been drinking? mustn't we have been drinking? mustn't you have been drinking? mustn't they have been drinking?