English verb conjugation
MUST ABSTRACT

Regular verb: abstract - abstracted - abstracted

Affirmation

Simple form	V-ing form
I must abstract you must abstract he must abstract we must abstract you must abstract they must abstract	I must be abstracting you must be abstracting he must be abstracting we must be abstracting you must be abstracting they must be abstracting
Perfect	V-ing perfect
I must have abstracted you must have abstracted he must have abstracted we must have abstracted you must have abstracted they must have abstracted	I must have been abstracting you must have been abstracting he must have been abstracting we must have been abstracting you must have been abstracting they must have been abstracting

Negation

Simple form	V-ing form
I must not abstract you must not abstract he must not abstract we must not abstract you must not abstract they must not abstract	I must not be abstracting you must not be abstracting he must not be abstracting we must not be abstracting you must not be abstracting they must not be abstracting
Perfect	V-ing perfect
I must not have abstracted you must not have abstracted he must not have abstracted we must not have abstracted you must not have abstracted they must not have abstracted	I must not have been abstracting you must not have been abstracting he must not have been abstracting we must not have been abstracting you must not have been abstracting they must not have been abstracting

Interrogative form

Simple form	V-ing form
must I abstract? must you abstract? must he abstract? must we abstract? must you abstract? must they abstract?	must I be abstracting? must you be abstracting? must he be abstracting? must we be abstracting? must you be abstracting? must they be abstracting?
Perfect	V-ing perfect
must I have abstracted? must you have abstracted? must he have abstracted? must we have abstracted? must you have abstracted? must they have abstracted?	must I have been abstracting? must you have been abstracting? must he have been abstracting? must we have been abstracting? must you have been abstracting? must they have been abstracting?

Interro-negative form

Simple form	V-ing form
must I not abstract? must you not abstract? must he not abstract? must we not abstract? must you not abstract? must they not abstract?	must I not be abstracting? must you not be abstracting? must he not be abstracting? must we not be abstracting? must you not be abstracting? must they not be abstracting?
Perfect	V-ing perfect
must I not have abstracted? must you not have abstracted? must he not have abstracted? must we not have abstracted? must you not have abstracted? must they not have abstracted?	must I not have been abstracting? must you not have been abstracting? must he not have been abstracting? must we not have been abstracting? must you not have been abstracting? must they not have been abstracting?