English verb conjugation
MUST FERRY

Regular verb: ferry - ferried - ferried

Affirmation

Simple form	V-ing form
I must ferry you must ferry he must ferry we must ferry you must ferry they must ferry	I must be ferrying you must be ferrying he must be ferrying we must be ferrying you must be ferrying they must be ferrying
Perfect	V-ing perfect
I must have ferried you must have ferried he must have ferried we must have ferried you must have ferried they must have ferried	I must have been ferrying you must have been ferrying he must have been ferrying we must have been ferrying you must have been ferrying they must have been ferrying

Negation

Simple form	V-ing form
I mustn't ferry you mustn't ferry he mustn't ferry we mustn't ferry you mustn't ferry they mustn't ferry	I mustn't be ferrying you mustn't be ferrying he mustn't be ferrying we mustn't be ferrying you mustn't be ferrying they mustn't be ferrying
Perfect	V-ing perfect
I mustn't have ferried you mustn't have ferried he mustn't have ferried we mustn't have ferried you mustn't have ferried they mustn't have ferried	I mustn't have been ferrying you mustn't have been ferrying he mustn't have been ferrying we mustn't have been ferrying you mustn't have been ferrying they mustn't have been ferrying

Interrogative form

Simple form	V-ing form
must I ferry? must you ferry? must he ferry? must we ferry? must you ferry? must they ferry?	must I be ferrying? must you be ferrying? must he be ferrying? must we be ferrying? must you be ferrying? must they be ferrying?
Perfect	V-ing perfect
must I have ferried? must you have ferried? must he have ferried? must we have ferried? must you have ferried? must they have ferried?	must I have been ferrying? must you have been ferrying? must he have been ferrying? must we have been ferrying? must you have been ferrying? must they have been ferrying?

Interro-negative form

Simple form	V-ing form
mustn't I ferry? mustn't you ferry? mustn't he ferry? mustn't we ferry? mustn't you ferry? mustn't they ferry?	mustn't I be ferrying? mustn't you be ferrying? mustn't he be ferrying? mustn't we be ferrying? mustn't you be ferrying? mustn't they be ferrying?
Perfect	V-ing perfect
mustn't I have ferried? mustn't you have ferried? mustn't he have ferried? mustn't we have ferried? mustn't you have ferried? mustn't they have ferried?	mustn't I have been ferrying? mustn't you have been ferrying? mustn't he have been ferrying? mustn't we have been ferrying? mustn't you have been ferrying? mustn't they have been ferrying?