English verb conjugation
MUST SERRATE

Regular verb: serrate - serrated - serrated

Affirmation

Simple form	V-ing form
I must serrate you must serrate he must serrate we must serrate you must serrate they must serrate	I must be serrating you must be serrating he must be serrating we must be serrating you must be serrating they must be serrating
Perfect	V-ing perfect
I must have serrated you must have serrated he must have serrated we must have serrated you must have serrated they must have serrated	I must have been serrating you must have been serrating he must have been serrating we must have been serrating you must have been serrating they must have been serrating

Negation

Simple form	V-ing form
I mustn't serrate you mustn't serrate he mustn't serrate we mustn't serrate you mustn't serrate they mustn't serrate	I mustn't be serrating you mustn't be serrating he mustn't be serrating we mustn't be serrating you mustn't be serrating they mustn't be serrating
Perfect	V-ing perfect
I mustn't have serrated you mustn't have serrated he mustn't have serrated we mustn't have serrated you mustn't have serrated they mustn't have serrated	I mustn't have been serrating you mustn't have been serrating he mustn't have been serrating we mustn't have been serrating you mustn't have been serrating they mustn't have been serrating

Interrogative form

Simple form	V-ing form
must I serrate? must you serrate? must he serrate? must we serrate? must you serrate? must they serrate?	must I be serrating? must you be serrating? must he be serrating? must we be serrating? must you be serrating? must they be serrating?
Perfect	V-ing perfect
must I have serrated? must you have serrated? must he have serrated? must we have serrated? must you have serrated? must they have serrated?	must I have been serrating? must you have been serrating? must he have been serrating? must we have been serrating? must you have been serrating? must they have been serrating?

Interro-negative form

Simple form	V-ing form
mustn't I serrate? mustn't you serrate? mustn't he serrate? mustn't we serrate? mustn't you serrate? mustn't they serrate?	mustn't I be serrating? mustn't you be serrating? mustn't he be serrating? mustn't we be serrating? mustn't you be serrating? mustn't they be serrating?
Perfect	V-ing perfect
mustn't I have serrated? mustn't you have serrated? mustn't he have serrated? mustn't we have serrated? mustn't you have serrated? mustn't they have serrated?	mustn't I have been serrating? mustn't you have been serrating? mustn't he have been serrating? mustn't we have been serrating? mustn't you have been serrating? mustn't they have been serrating?