English verb conjugation
MUST UDERSTATE STH

Regular verb: uderstate sth - uderstate sthed - uderstate sthed

Warning, this verb may not exist. Conjugation is given as example.

Affirmation

Simple form	V-ing form
I must uderstate sth you must uderstate sth he must uderstate sth we must uderstate sth you must uderstate sth they must uderstate sth	I must be uderstate sthing you must be uderstate sthing he must be uderstate sthing we must be uderstate sthing you must be uderstate sthing they must be uderstate sthing
Perfect	V-ing perfect
I must have uderstate sthed you must have uderstate sthed he must have uderstate sthed we must have uderstate sthed you must have uderstate sthed they must have uderstate sthed	I must have been uderstate sthing you must have been uderstate sthing he must have been uderstate sthing we must have been uderstate sthing you must have been uderstate sthing they must have been uderstate sthing

Negation

Simple form	V-ing form
I mustn't uderstate sth you mustn't uderstate sth he mustn't uderstate sth we mustn't uderstate sth you mustn't uderstate sth they mustn't uderstate sth	I mustn't be uderstate sthing you mustn't be uderstate sthing he mustn't be uderstate sthing we mustn't be uderstate sthing you mustn't be uderstate sthing they mustn't be uderstate sthing
Perfect	V-ing perfect
I mustn't have uderstate sthed you mustn't have uderstate sthed he mustn't have uderstate sthed we mustn't have uderstate sthed you mustn't have uderstate sthed they mustn't have uderstate sthed	I mustn't have been uderstate sthing you mustn't have been uderstate sthing he mustn't have been uderstate sthing we mustn't have been uderstate sthing you mustn't have been uderstate sthing they mustn't have been uderstate sthing

Interrogative form

Simple form	V-ing form
must I uderstate sth? must you uderstate sth? must he uderstate sth? must we uderstate sth? must you uderstate sth? must they uderstate sth?	must I be uderstate sthing? must you be uderstate sthing? must he be uderstate sthing? must we be uderstate sthing? must you be uderstate sthing? must they be uderstate sthing?
Perfect	V-ing perfect
must I have uderstate sthed? must you have uderstate sthed? must he have uderstate sthed? must we have uderstate sthed? must you have uderstate sthed? must they have uderstate sthed?	must I have been uderstate sthing? must you have been uderstate sthing? must he have been uderstate sthing? must we have been uderstate sthing? must you have been uderstate sthing? must they have been uderstate sthing?

Interro-negative form

Simple form	V-ing form
mustn't I uderstate sth? mustn't you uderstate sth? mustn't he uderstate sth? mustn't we uderstate sth? mustn't you uderstate sth? mustn't they uderstate sth?	mustn't I be uderstate sthing? mustn't you be uderstate sthing? mustn't he be uderstate sthing? mustn't we be uderstate sthing? mustn't you be uderstate sthing? mustn't they be uderstate sthing?
Perfect	V-ing perfect
mustn't I have uderstate sthed? mustn't you have uderstate sthed? mustn't he have uderstate sthed? mustn't we have uderstate sthed? mustn't you have uderstate sthed? mustn't they have uderstate sthed?	mustn't I have been uderstate sthing? mustn't you have been uderstate sthing? mustn't he have been uderstate sthing? mustn't we have been uderstate sthing? mustn't you have been uderstate sthing? mustn't they have been uderstate sthing?