English verb conjugation
MUST TALK

Regular verb: talk - talked - talked

Affirmation

Simple form	V-ing form
I must talk you must talk he must talk we must talk you must talk they must talk	I must be talking you must be talking he must be talking we must be talking you must be talking they must be talking
Perfect	V-ing perfect
I must have talked you must have talked he must have talked we must have talked you must have talked they must have talked	I must have been talking you must have been talking he must have been talking we must have been talking you must have been talking they must have been talking

Negation

Simple form	V-ing form
I mustn't talk you mustn't talk he mustn't talk we mustn't talk you mustn't talk they mustn't talk	I mustn't be talking you mustn't be talking he mustn't be talking we mustn't be talking you mustn't be talking they mustn't be talking
Perfect	V-ing perfect
I mustn't have talked you mustn't have talked he mustn't have talked we mustn't have talked you mustn't have talked they mustn't have talked	I mustn't have been talking you mustn't have been talking he mustn't have been talking we mustn't have been talking you mustn't have been talking they mustn't have been talking

Interrogative form

Simple form	V-ing form
must I talk? must you talk? must he talk? must we talk? must you talk? must they talk?	must I be talking? must you be talking? must he be talking? must we be talking? must you be talking? must they be talking?
Perfect	V-ing perfect
must I have talked? must you have talked? must he have talked? must we have talked? must you have talked? must they have talked?	must I have been talking? must you have been talking? must he have been talking? must we have been talking? must you have been talking? must they have been talking?

Interro-negative form

Simple form	V-ing form
mustn't I talk? mustn't you talk? mustn't he talk? mustn't we talk? mustn't you talk? mustn't they talk?	mustn't I be talking? mustn't you be talking? mustn't he be talking? mustn't we be talking? mustn't you be talking? mustn't they be talking?
Perfect	V-ing perfect
mustn't I have talked? mustn't you have talked? mustn't he have talked? mustn't we have talked? mustn't you have talked? mustn't they have talked?	mustn't I have been talking? mustn't you have been talking? mustn't he have been talking? mustn't we have been talking? mustn't you have been talking? mustn't they have been talking?