English verb conjugation
MUST PERPEND

Regular verb: perpend - perpended - perpended

Affirmation

Simple form	V-ing form
I must perpend you must perpend she must perpend we must perpend you must perpend they must perpend	I must be perpending you must be perpending she must be perpending we must be perpending you must be perpending they must be perpending
Perfect	V-ing perfect
I must have perpended you must have perpended she must have perpended we must have perpended you must have perpended they must have perpended	I must have been perpending you must have been perpending she must have been perpending we must have been perpending you must have been perpending they must have been perpending

Negation

Simple form	V-ing form
I mustn't perpend you mustn't perpend she mustn't perpend we mustn't perpend you mustn't perpend they mustn't perpend	I mustn't be perpending you mustn't be perpending she mustn't be perpending we mustn't be perpending you mustn't be perpending they mustn't be perpending
Perfect	V-ing perfect
I mustn't have perpended you mustn't have perpended she mustn't have perpended we mustn't have perpended you mustn't have perpended they mustn't have perpended	I mustn't have been perpending you mustn't have been perpending she mustn't have been perpending we mustn't have been perpending you mustn't have been perpending they mustn't have been perpending

Interrogative form

Simple form	V-ing form
must I perpend? must you perpend? must she perpend? must we perpend? must you perpend? must they perpend?	must I be perpending? must you be perpending? must she be perpending? must we be perpending? must you be perpending? must they be perpending?
Perfect	V-ing perfect
must I have perpended? must you have perpended? must she have perpended? must we have perpended? must you have perpended? must they have perpended?	must I have been perpending? must you have been perpending? must she have been perpending? must we have been perpending? must you have been perpending? must they have been perpending?

Interro-negative form

Simple form	V-ing form
mustn't I perpend? mustn't you perpend? mustn't she perpend? mustn't we perpend? mustn't you perpend? mustn't they perpend?	mustn't I be perpending? mustn't you be perpending? mustn't she be perpending? mustn't we be perpending? mustn't you be perpending? mustn't they be perpending?
Perfect	V-ing perfect
mustn't I have perpended? mustn't you have perpended? mustn't she have perpended? mustn't we have perpended? mustn't you have perpended? mustn't they have perpended?	mustn't I have been perpending? mustn't you have been perpending? mustn't she have been perpending? mustn't we have been perpending? mustn't you have been perpending? mustn't they have been perpending?