English verb conjugation
MUST GRAPH

Regular verb: graph - graphed - graphed

Affirmation

Simple form	V-ing form
I must graph you must graph he must graph we must graph you must graph they must graph	I must be graphing you must be graphing he must be graphing we must be graphing you must be graphing they must be graphing
Perfect	V-ing perfect
I must have graphed you must have graphed he must have graphed we must have graphed you must have graphed they must have graphed	I must have been graphing you must have been graphing he must have been graphing we must have been graphing you must have been graphing they must have been graphing

Negation

Simple form	V-ing form
I must not graph you must not graph he must not graph we must not graph you must not graph they must not graph	I must not be graphing you must not be graphing he must not be graphing we must not be graphing you must not be graphing they must not be graphing
Perfect	V-ing perfect
I must not have graphed you must not have graphed he must not have graphed we must not have graphed you must not have graphed they must not have graphed	I must not have been graphing you must not have been graphing he must not have been graphing we must not have been graphing you must not have been graphing they must not have been graphing

Interrogative form

Simple form	V-ing form
must I graph? must you graph? must he graph? must we graph? must you graph? must they graph?	must I be graphing? must you be graphing? must he be graphing? must we be graphing? must you be graphing? must they be graphing?
Perfect	V-ing perfect
must I have graphed? must you have graphed? must he have graphed? must we have graphed? must you have graphed? must they have graphed?	must I have been graphing? must you have been graphing? must he have been graphing? must we have been graphing? must you have been graphing? must they have been graphing?

Interro-negative form

Simple form	V-ing form
must I not graph? must you not graph? must he not graph? must we not graph? must you not graph? must they not graph?	must I not be graphing? must you not be graphing? must he not be graphing? must we not be graphing? must you not be graphing? must they not be graphing?
Perfect	V-ing perfect
must I not have graphed? must you not have graphed? must he not have graphed? must we not have graphed? must you not have graphed? must they not have graphed?	must I not have been graphing? must you not have been graphing? must he not have been graphing? must we not have been graphing? must you not have been graphing? must they not have been graphing?