English verb conjugation
MUST REPINE

Regular verb: repine - repined - repined

Affirmation

Simple form	V-ing form
I must repine you must repine he must repine we must repine you must repine they must repine	I must be repining you must be repining he must be repining we must be repining you must be repining they must be repining
Perfect	V-ing perfect
I must have repined you must have repined he must have repined we must have repined you must have repined they must have repined	I must have been repining you must have been repining he must have been repining we must have been repining you must have been repining they must have been repining

Negation

Simple form	V-ing form
I mustn't repine you mustn't repine he mustn't repine we mustn't repine you mustn't repine they mustn't repine	I mustn't be repining you mustn't be repining he mustn't be repining we mustn't be repining you mustn't be repining they mustn't be repining
Perfect	V-ing perfect
I mustn't have repined you mustn't have repined he mustn't have repined we mustn't have repined you mustn't have repined they mustn't have repined	I mustn't have been repining you mustn't have been repining he mustn't have been repining we mustn't have been repining you mustn't have been repining they mustn't have been repining

Interrogative form

Simple form	V-ing form
must I repine? must you repine? must he repine? must we repine? must you repine? must they repine?	must I be repining? must you be repining? must he be repining? must we be repining? must you be repining? must they be repining?
Perfect	V-ing perfect
must I have repined? must you have repined? must he have repined? must we have repined? must you have repined? must they have repined?	must I have been repining? must you have been repining? must he have been repining? must we have been repining? must you have been repining? must they have been repining?

Interro-negative form

Simple form	V-ing form
mustn't I repine? mustn't you repine? mustn't he repine? mustn't we repine? mustn't you repine? mustn't they repine?	mustn't I be repining? mustn't you be repining? mustn't he be repining? mustn't we be repining? mustn't you be repining? mustn't they be repining?
Perfect	V-ing perfect
mustn't I have repined? mustn't you have repined? mustn't he have repined? mustn't we have repined? mustn't you have repined? mustn't they have repined?	mustn't I have been repining? mustn't you have been repining? mustn't he have been repining? mustn't we have been repining? mustn't you have been repining? mustn't they have been repining?