English verb conjugation
MUST SQUINT

Regular verb: squint - squinted - squinted

Affirmation

Simple form	V-ing form
I must squint you must squint she must squint we must squint you must squint they must squint	I must be squinting you must be squinting she must be squinting we must be squinting you must be squinting they must be squinting
Perfect	V-ing perfect
I must have squinted you must have squinted she must have squinted we must have squinted you must have squinted they must have squinted	I must have been squinting you must have been squinting she must have been squinting we must have been squinting you must have been squinting they must have been squinting

Negation

Simple form	V-ing form
I mustn't squint you mustn't squint she mustn't squint we mustn't squint you mustn't squint they mustn't squint	I mustn't be squinting you mustn't be squinting she mustn't be squinting we mustn't be squinting you mustn't be squinting they mustn't be squinting
Perfect	V-ing perfect
I mustn't have squinted you mustn't have squinted she mustn't have squinted we mustn't have squinted you mustn't have squinted they mustn't have squinted	I mustn't have been squinting you mustn't have been squinting she mustn't have been squinting we mustn't have been squinting you mustn't have been squinting they mustn't have been squinting

Interrogative form

Simple form	V-ing form
must I squint? must you squint? must she squint? must we squint? must you squint? must they squint?	must I be squinting? must you be squinting? must she be squinting? must we be squinting? must you be squinting? must they be squinting?
Perfect	V-ing perfect
must I have squinted? must you have squinted? must she have squinted? must we have squinted? must you have squinted? must they have squinted?	must I have been squinting? must you have been squinting? must she have been squinting? must we have been squinting? must you have been squinting? must they have been squinting?

Interro-negative form

Simple form	V-ing form
mustn't I squint? mustn't you squint? mustn't she squint? mustn't we squint? mustn't you squint? mustn't they squint?	mustn't I be squinting? mustn't you be squinting? mustn't she be squinting? mustn't we be squinting? mustn't you be squinting? mustn't they be squinting?
Perfect	V-ing perfect
mustn't I have squinted? mustn't you have squinted? mustn't she have squinted? mustn't we have squinted? mustn't you have squinted? mustn't they have squinted?	mustn't I have been squinting? mustn't you have been squinting? mustn't she have been squinting? mustn't we have been squinting? mustn't you have been squinting? mustn't they have been squinting?