English verb conjugation
MUST STAY UP

Regular verb: stay up - stay uped - stay uped

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must stay up you must stay up she must stay up we must stay up you must stay up they must stay up	I must be stay uping you must be stay uping she must be stay uping we must be stay uping you must be stay uping they must be stay uping
Perfect	V-ing perfect
I must have stay uped you must have stay uped she must have stay uped we must have stay uped you must have stay uped they must have stay uped	I must have been stay uping you must have been stay uping she must have been stay uping we must have been stay uping you must have been stay uping they must have been stay uping

Negation

Simple form	V-ing form
I mustn't stay up you mustn't stay up she mustn't stay up we mustn't stay up you mustn't stay up they mustn't stay up	I mustn't be stay uping you mustn't be stay uping she mustn't be stay uping we mustn't be stay uping you mustn't be stay uping they mustn't be stay uping
Perfect	V-ing perfect
I mustn't have stay uped you mustn't have stay uped she mustn't have stay uped we mustn't have stay uped you mustn't have stay uped they mustn't have stay uped	I mustn't have been stay uping you mustn't have been stay uping she mustn't have been stay uping we mustn't have been stay uping you mustn't have been stay uping they mustn't have been stay uping

Interrogative form

Simple form	V-ing form
must I stay up? must you stay up? must she stay up? must we stay up? must you stay up? must they stay up?	must I be stay uping? must you be stay uping? must she be stay uping? must we be stay uping? must you be stay uping? must they be stay uping?
Perfect	V-ing perfect
must I have stay uped? must you have stay uped? must she have stay uped? must we have stay uped? must you have stay uped? must they have stay uped?	must I have been stay uping? must you have been stay uping? must she have been stay uping? must we have been stay uping? must you have been stay uping? must they have been stay uping?

Interro-negative form

Simple form	V-ing form
mustn't I stay up? mustn't you stay up? mustn't she stay up? mustn't we stay up? mustn't you stay up? mustn't they stay up?	mustn't I be stay uping? mustn't you be stay uping? mustn't she be stay uping? mustn't we be stay uping? mustn't you be stay uping? mustn't they be stay uping?
Perfect	V-ing perfect
mustn't I have stay uped? mustn't you have stay uped? mustn't she have stay uped? mustn't we have stay uped? mustn't you have stay uped? mustn't they have stay uped?	mustn't I have been stay uping? mustn't you have been stay uping? mustn't she have been stay uping? mustn't we have been stay uping? mustn't you have been stay uping? mustn't they have been stay uping?