English verb conjugation
MUST HUDDLE

Regular verb: huddle - huddled - huddled

Affirmation

Simple form	V-ing form
I must huddle you must huddle he must huddle we must huddle you must huddle they must huddle	I must be huddling you must be huddling he must be huddling we must be huddling you must be huddling they must be huddling
Perfect	V-ing perfect
I must have huddled you must have huddled he must have huddled we must have huddled you must have huddled they must have huddled	I must have been huddling you must have been huddling he must have been huddling we must have been huddling you must have been huddling they must have been huddling

Negation

Simple form	V-ing form
I mustn't huddle you mustn't huddle he mustn't huddle we mustn't huddle you mustn't huddle they mustn't huddle	I mustn't be huddling you mustn't be huddling he mustn't be huddling we mustn't be huddling you mustn't be huddling they mustn't be huddling
Perfect	V-ing perfect
I mustn't have huddled you mustn't have huddled he mustn't have huddled we mustn't have huddled you mustn't have huddled they mustn't have huddled	I mustn't have been huddling you mustn't have been huddling he mustn't have been huddling we mustn't have been huddling you mustn't have been huddling they mustn't have been huddling

Interrogative form

Simple form	V-ing form
must I huddle? must you huddle? must he huddle? must we huddle? must you huddle? must they huddle?	must I be huddling? must you be huddling? must he be huddling? must we be huddling? must you be huddling? must they be huddling?
Perfect	V-ing perfect
must I have huddled? must you have huddled? must he have huddled? must we have huddled? must you have huddled? must they have huddled?	must I have been huddling? must you have been huddling? must he have been huddling? must we have been huddling? must you have been huddling? must they have been huddling?

Interro-negative form

Simple form	V-ing form
mustn't I huddle? mustn't you huddle? mustn't he huddle? mustn't we huddle? mustn't you huddle? mustn't they huddle?	mustn't I be huddling? mustn't you be huddling? mustn't he be huddling? mustn't we be huddling? mustn't you be huddling? mustn't they be huddling?
Perfect	V-ing perfect
mustn't I have huddled? mustn't you have huddled? mustn't he have huddled? mustn't we have huddled? mustn't you have huddled? mustn't they have huddled?	mustn't I have been huddling? mustn't you have been huddling? mustn't he have been huddling? mustn't we have been huddling? mustn't you have been huddling? mustn't they have been huddling?