English verb conjugation
MUST DESOLATE

Regular verb: desolate - desolated - desolated

Affirmation

Simple form	V-ing form
I must desolate you must desolate he must desolate we must desolate you must desolate they must desolate	I must be desolating you must be desolating he must be desolating we must be desolating you must be desolating they must be desolating
Perfect	V-ing perfect
I must have desolated you must have desolated he must have desolated we must have desolated you must have desolated they must have desolated	I must have been desolating you must have been desolating he must have been desolating we must have been desolating you must have been desolating they must have been desolating

Negation

Simple form	V-ing form
I mustn't desolate you mustn't desolate he mustn't desolate we mustn't desolate you mustn't desolate they mustn't desolate	I mustn't be desolating you mustn't be desolating he mustn't be desolating we mustn't be desolating you mustn't be desolating they mustn't be desolating
Perfect	V-ing perfect
I mustn't have desolated you mustn't have desolated he mustn't have desolated we mustn't have desolated you mustn't have desolated they mustn't have desolated	I mustn't have been desolating you mustn't have been desolating he mustn't have been desolating we mustn't have been desolating you mustn't have been desolating they mustn't have been desolating

Interrogative form

Simple form	V-ing form
must I desolate? must you desolate? must he desolate? must we desolate? must you desolate? must they desolate?	must I be desolating? must you be desolating? must he be desolating? must we be desolating? must you be desolating? must they be desolating?
Perfect	V-ing perfect
must I have desolated? must you have desolated? must he have desolated? must we have desolated? must you have desolated? must they have desolated?	must I have been desolating? must you have been desolating? must he have been desolating? must we have been desolating? must you have been desolating? must they have been desolating?

Interro-negative form

Simple form	V-ing form
mustn't I desolate? mustn't you desolate? mustn't he desolate? mustn't we desolate? mustn't you desolate? mustn't they desolate?	mustn't I be desolating? mustn't you be desolating? mustn't he be desolating? mustn't we be desolating? mustn't you be desolating? mustn't they be desolating?
Perfect	V-ing perfect
mustn't I have desolated? mustn't you have desolated? mustn't he have desolated? mustn't we have desolated? mustn't you have desolated? mustn't they have desolated?	mustn't I have been desolating? mustn't you have been desolating? mustn't he have been desolating? mustn't we have been desolating? mustn't you have been desolating? mustn't they have been desolating?