English verb conjugation
MUST RUFFLE

Regular verb: ruffle - ruffled - ruffled

Affirmation

Simple form	V-ing form
I must ruffle you must ruffle he must ruffle we must ruffle you must ruffle they must ruffle	I must be ruffling you must be ruffling he must be ruffling we must be ruffling you must be ruffling they must be ruffling
Perfect	V-ing perfect
I must have ruffled you must have ruffled he must have ruffled we must have ruffled you must have ruffled they must have ruffled	I must have been ruffling you must have been ruffling he must have been ruffling we must have been ruffling you must have been ruffling they must have been ruffling

Negation

Simple form	V-ing form
I must not ruffle you must not ruffle he must not ruffle we must not ruffle you must not ruffle they must not ruffle	I must not be ruffling you must not be ruffling he must not be ruffling we must not be ruffling you must not be ruffling they must not be ruffling
Perfect	V-ing perfect
I must not have ruffled you must not have ruffled he must not have ruffled we must not have ruffled you must not have ruffled they must not have ruffled	I must not have been ruffling you must not have been ruffling he must not have been ruffling we must not have been ruffling you must not have been ruffling they must not have been ruffling

Interrogative form

Simple form	V-ing form
must I ruffle? must you ruffle? must he ruffle? must we ruffle? must you ruffle? must they ruffle?	must I be ruffling? must you be ruffling? must he be ruffling? must we be ruffling? must you be ruffling? must they be ruffling?
Perfect	V-ing perfect
must I have ruffled? must you have ruffled? must he have ruffled? must we have ruffled? must you have ruffled? must they have ruffled?	must I have been ruffling? must you have been ruffling? must he have been ruffling? must we have been ruffling? must you have been ruffling? must they have been ruffling?

Interro-negative form

Simple form	V-ing form
must I not ruffle? must you not ruffle? must he not ruffle? must we not ruffle? must you not ruffle? must they not ruffle?	must I not be ruffling? must you not be ruffling? must he not be ruffling? must we not be ruffling? must you not be ruffling? must they not be ruffling?
Perfect	V-ing perfect
must I not have ruffled? must you not have ruffled? must he not have ruffled? must we not have ruffled? must you not have ruffled? must they not have ruffled?	must I not have been ruffling? must you not have been ruffling? must he not have been ruffling? must we not have been ruffling? must you not have been ruffling? must they not have been ruffling?