English verb conjugation
MUST SQUINT

Regular verb: squint - squinted - squinted

Affirmation

Simple form	V-ing form
I must squint you must squint he must squint we must squint you must squint they must squint	I must be squinting you must be squinting he 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 he 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 he 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 he 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 he 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 he 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 he 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 he squint? must we squint? must you squint? must they squint?	must I be squinting? must you be squinting? must he 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 he 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 he 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 he 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 he 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 he 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 he have been squinting? mustn't we have been squinting? mustn't you have been squinting? mustn't they have been squinting?