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 mustn't girth you mustn't girth he mustn't girth we mustn't girth you mustn't girth they mustn't girth	I mustn't be girthing you mustn't be girthing he mustn't be girthing we mustn't be girthing you mustn't be girthing they mustn't be girthing
Perfect	V-ing perfect
I mustn't have girthed you mustn't have girthed he mustn't have girthed we mustn't have girthed you mustn't have girthed they mustn't have girthed	I mustn't have been girthing you mustn't have been girthing he mustn't have been girthing we mustn't have been girthing you mustn't have been girthing they mustn't 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
mustn't I girth? mustn't you girth? mustn't he girth? mustn't we girth? mustn't you girth? mustn't they girth?	mustn't I be girthing? mustn't you be girthing? mustn't he be girthing? mustn't we be girthing? mustn't you be girthing? mustn't they be girthing?
Perfect	V-ing perfect
mustn't I have girthed? mustn't you have girthed? mustn't he have girthed? mustn't we have girthed? mustn't you have girthed? mustn't they have girthed?	mustn't I have been girthing? mustn't you have been girthing? mustn't he have been girthing? mustn't we have been girthing? mustn't you have been girthing? mustn't they have been girthing?