English verb conjugation
MUST WHISPER

Regular verb: whisper - whispered - whispered

Affirmation

Simple form	V-ing form
I must whisper you must whisper he must whisper we must whisper you must whisper they must whisper	I must be whispering you must be whispering he must be whispering we must be whispering you must be whispering they must be whispering
Perfect	V-ing perfect
I must have whispered you must have whispered he must have whispered we must have whispered you must have whispered they must have whispered	I must have been whispering you must have been whispering he must have been whispering we must have been whispering you must have been whispering they must have been whispering

Negation

Simple form	V-ing form
I mustn't whisper you mustn't whisper he mustn't whisper we mustn't whisper you mustn't whisper they mustn't whisper	I mustn't be whispering you mustn't be whispering he mustn't be whispering we mustn't be whispering you mustn't be whispering they mustn't be whispering
Perfect	V-ing perfect
I mustn't have whispered you mustn't have whispered he mustn't have whispered we mustn't have whispered you mustn't have whispered they mustn't have whispered	I mustn't have been whispering you mustn't have been whispering he mustn't have been whispering we mustn't have been whispering you mustn't have been whispering they mustn't have been whispering

Interrogative form

Simple form	V-ing form
must I whisper? must you whisper? must he whisper? must we whisper? must you whisper? must they whisper?	must I be whispering? must you be whispering? must he be whispering? must we be whispering? must you be whispering? must they be whispering?
Perfect	V-ing perfect
must I have whispered? must you have whispered? must he have whispered? must we have whispered? must you have whispered? must they have whispered?	must I have been whispering? must you have been whispering? must he have been whispering? must we have been whispering? must you have been whispering? must they have been whispering?

Interro-negative form

Simple form	V-ing form
mustn't I whisper? mustn't you whisper? mustn't he whisper? mustn't we whisper? mustn't you whisper? mustn't they whisper?	mustn't I be whispering? mustn't you be whispering? mustn't he be whispering? mustn't we be whispering? mustn't you be whispering? mustn't they be whispering?
Perfect	V-ing perfect
mustn't I have whispered? mustn't you have whispered? mustn't he have whispered? mustn't we have whispered? mustn't you have whispered? mustn't they have whispered?	mustn't I have been whispering? mustn't you have been whispering? mustn't he have been whispering? mustn't we have been whispering? mustn't you have been whispering? mustn't they have been whispering?