English verb conjugation
MUST FLINCH

Regular verb: flinch - flinched - flinched

Affirmation

Simple form	V-ing form
I must flinch you must flinch she must flinch we must flinch you must flinch they must flinch	I must be flinching you must be flinching she must be flinching we must be flinching you must be flinching they must be flinching
Perfect	V-ing perfect
I must have flinched you must have flinched she must have flinched we must have flinched you must have flinched they must have flinched	I must have been flinching you must have been flinching she must have been flinching we must have been flinching you must have been flinching they must have been flinching

Negation

Simple form	V-ing form
I mustn't flinch you mustn't flinch she mustn't flinch we mustn't flinch you mustn't flinch they mustn't flinch	I mustn't be flinching you mustn't be flinching she mustn't be flinching we mustn't be flinching you mustn't be flinching they mustn't be flinching
Perfect	V-ing perfect
I mustn't have flinched you mustn't have flinched she mustn't have flinched we mustn't have flinched you mustn't have flinched they mustn't have flinched	I mustn't have been flinching you mustn't have been flinching she mustn't have been flinching we mustn't have been flinching you mustn't have been flinching they mustn't have been flinching

Interrogative form

Simple form	V-ing form
must I flinch? must you flinch? must she flinch? must we flinch? must you flinch? must they flinch?	must I be flinching? must you be flinching? must she be flinching? must we be flinching? must you be flinching? must they be flinching?
Perfect	V-ing perfect
must I have flinched? must you have flinched? must she have flinched? must we have flinched? must you have flinched? must they have flinched?	must I have been flinching? must you have been flinching? must she have been flinching? must we have been flinching? must you have been flinching? must they have been flinching?

Interro-negative form

Simple form	V-ing form
mustn't I flinch? mustn't you flinch? mustn't she flinch? mustn't we flinch? mustn't you flinch? mustn't they flinch?	mustn't I be flinching? mustn't you be flinching? mustn't she be flinching? mustn't we be flinching? mustn't you be flinching? mustn't they be flinching?
Perfect	V-ing perfect
mustn't I have flinched? mustn't you have flinched? mustn't she have flinched? mustn't we have flinched? mustn't you have flinched? mustn't they have flinched?	mustn't I have been flinching? mustn't you have been flinching? mustn't she have been flinching? mustn't we have been flinching? mustn't you have been flinching? mustn't they have been flinching?