English verb conjugation
MUST GIRTH

Regular verb: girth - girthed - girthed

Affirmation

Simple form	V-ing form
I must girth you must girth he must girth we must girth you must girth they must girth	I must be girthing you must be girthing he must be girthing we must be girthing you must be girthing they must be girthing
Perfect	V-ing perfect
I must have girthed you must have girthed he must have girthed we must have girthed you must have girthed they must have girthed	I must have been girthing you must have been girthing he must have been girthing we must have been girthing you must have been girthing they must have been girthing

Negation

Simple form	V-ing form
I must not girth you must not girth he must not girth we must not girth you must not girth they must not girth	I must not be girthing you must not be girthing he must not be girthing we must not be girthing you must not be girthing they must not be girthing
Perfect	V-ing perfect
I must not have girthed you must not have girthed he must not have girthed we must not have girthed you must not have girthed they must not have girthed	I must not have been girthing you must not have been girthing he must not have been girthing we must not have been girthing you must not have been girthing they must not have been girthing

Interrogative form

Simple form	V-ing form
must I girth? must you girth? must he girth? must we girth? must you girth? must they girth?	must I be girthing? must you be girthing? must he be girthing? must we be girthing? must you be girthing? must they be girthing?
Perfect	V-ing perfect
must I have girthed? must you have girthed? must he have girthed? must we have girthed? must you have girthed? must they have girthed?	must I have been girthing? must you have been girthing? must he have been girthing? must we have been girthing? must you have been girthing? must they have been girthing?

Interro-negative form

Simple form	V-ing form
must I not girth? must you not girth? must he not girth? must we not girth? must you not girth? must they not girth?	must I not be girthing? must you not be girthing? must he not be girthing? must we not be girthing? must you not be girthing? must they not be girthing?
Perfect	V-ing perfect
must I not have girthed? must you not have girthed? must he not have girthed? must we not have girthed? must you not have girthed? must they not have girthed?	must I not have been girthing? must you not have been girthing? must he not have been girthing? must we not have been girthing? must you not have been girthing? must they not have been girthing?