English verb conjugation
MUST CHIN

Regular verb: chin - chined - chined

Affirmation

Simple form	V-ing form
I must chin you must chin he must chin we must chin you must chin they must chin	I must be chining you must be chining he must be chining we must be chining you must be chining they must be chining
Perfect	V-ing perfect
I must have chined you must have chined he must have chined we must have chined you must have chined they must have chined	I must have been chining you must have been chining he must have been chining we must have been chining you must have been chining they must have been chining

Negation

Simple form	V-ing form
I mustn't chin you mustn't chin he mustn't chin we mustn't chin you mustn't chin they mustn't chin	I mustn't be chining you mustn't be chining he mustn't be chining we mustn't be chining you mustn't be chining they mustn't be chining
Perfect	V-ing perfect
I mustn't have chined you mustn't have chined he mustn't have chined we mustn't have chined you mustn't have chined they mustn't have chined	I mustn't have been chining you mustn't have been chining he mustn't have been chining we mustn't have been chining you mustn't have been chining they mustn't have been chining

Interrogative form

Simple form	V-ing form
must I chin? must you chin? must he chin? must we chin? must you chin? must they chin?	must I be chining? must you be chining? must he be chining? must we be chining? must you be chining? must they be chining?
Perfect	V-ing perfect
must I have chined? must you have chined? must he have chined? must we have chined? must you have chined? must they have chined?	must I have been chining? must you have been chining? must he have been chining? must we have been chining? must you have been chining? must they have been chining?

Interro-negative form

Simple form	V-ing form
mustn't I chin? mustn't you chin? mustn't he chin? mustn't we chin? mustn't you chin? mustn't they chin?	mustn't I be chining? mustn't you be chining? mustn't he be chining? mustn't we be chining? mustn't you be chining? mustn't they be chining?
Perfect	V-ing perfect
mustn't I have chined? mustn't you have chined? mustn't he have chined? mustn't we have chined? mustn't you have chined? mustn't they have chined?	mustn't I have been chining? mustn't you have been chining? mustn't he have been chining? mustn't we have been chining? mustn't you have been chining? mustn't they have been chining?