English verb conjugation
MUST FERULE

Regular verb: ferule - feruled - feruled

Affirmation

Simple form	V-ing form
I must ferule you must ferule he must ferule we must ferule you must ferule they must ferule	I must be feruling you must be feruling he must be feruling we must be feruling you must be feruling they must be feruling
Perfect	V-ing perfect
I must have feruled you must have feruled he must have feruled we must have feruled you must have feruled they must have feruled	I must have been feruling you must have been feruling he must have been feruling we must have been feruling you must have been feruling they must have been feruling

Negation

Simple form	V-ing form
I must not ferule you must not ferule he must not ferule we must not ferule you must not ferule they must not ferule	I must not be feruling you must not be feruling he must not be feruling we must not be feruling you must not be feruling they must not be feruling
Perfect	V-ing perfect
I must not have feruled you must not have feruled he must not have feruled we must not have feruled you must not have feruled they must not have feruled	I must not have been feruling you must not have been feruling he must not have been feruling we must not have been feruling you must not have been feruling they must not have been feruling

Interrogative form

Simple form	V-ing form
must I ferule? must you ferule? must he ferule? must we ferule? must you ferule? must they ferule?	must I be feruling? must you be feruling? must he be feruling? must we be feruling? must you be feruling? must they be feruling?
Perfect	V-ing perfect
must I have feruled? must you have feruled? must he have feruled? must we have feruled? must you have feruled? must they have feruled?	must I have been feruling? must you have been feruling? must he have been feruling? must we have been feruling? must you have been feruling? must they have been feruling?

Interro-negative form

Simple form	V-ing form
must I not ferule? must you not ferule? must he not ferule? must we not ferule? must you not ferule? must they not ferule?	must I not be feruling? must you not be feruling? must he not be feruling? must we not be feruling? must you not be feruling? must they not be feruling?
Perfect	V-ing perfect
must I not have feruled? must you not have feruled? must he not have feruled? must we not have feruled? must you not have feruled? must they not have feruled?	must I not have been feruling? must you not have been feruling? must he not have been feruling? must we not have been feruling? must you not have been feruling? must they not have been feruling?