English verb conjugation
MUST LITHOGRAPH

Regular verb: lithograph - lithographed - lithographed

Affirmation

Simple form	V-ing form
I must lithograph you must lithograph she must lithograph we must lithograph you must lithograph they must lithograph	I must be lithographing you must be lithographing she must be lithographing we must be lithographing you must be lithographing they must be lithographing
Perfect	V-ing perfect
I must have lithographed you must have lithographed she must have lithographed we must have lithographed you must have lithographed they must have lithographed	I must have been lithographing you must have been lithographing she must have been lithographing we must have been lithographing you must have been lithographing they must have been lithographing

Negation

Simple form	V-ing form
I mustn't lithograph you mustn't lithograph she mustn't lithograph we mustn't lithograph you mustn't lithograph they mustn't lithograph	I mustn't be lithographing you mustn't be lithographing she mustn't be lithographing we mustn't be lithographing you mustn't be lithographing they mustn't be lithographing
Perfect	V-ing perfect
I mustn't have lithographed you mustn't have lithographed she mustn't have lithographed we mustn't have lithographed you mustn't have lithographed they mustn't have lithographed	I mustn't have been lithographing you mustn't have been lithographing she mustn't have been lithographing we mustn't have been lithographing you mustn't have been lithographing they mustn't have been lithographing

Interrogative form

Simple form	V-ing form
must I lithograph? must you lithograph? must she lithograph? must we lithograph? must you lithograph? must they lithograph?	must I be lithographing? must you be lithographing? must she be lithographing? must we be lithographing? must you be lithographing? must they be lithographing?
Perfect	V-ing perfect
must I have lithographed? must you have lithographed? must she have lithographed? must we have lithographed? must you have lithographed? must they have lithographed?	must I have been lithographing? must you have been lithographing? must she have been lithographing? must we have been lithographing? must you have been lithographing? must they have been lithographing?

Interro-negative form

Simple form	V-ing form
mustn't I lithograph? mustn't you lithograph? mustn't she lithograph? mustn't we lithograph? mustn't you lithograph? mustn't they lithograph?	mustn't I be lithographing? mustn't you be lithographing? mustn't she be lithographing? mustn't we be lithographing? mustn't you be lithographing? mustn't they be lithographing?
Perfect	V-ing perfect
mustn't I have lithographed? mustn't you have lithographed? mustn't she have lithographed? mustn't we have lithographed? mustn't you have lithographed? mustn't they have lithographed?	mustn't I have been lithographing? mustn't you have been lithographing? mustn't she have been lithographing? mustn't we have been lithographing? mustn't you have been lithographing? mustn't they have been lithographing?