English verb conjugation
MUST DESKILL

Regular verb: deskill - deskilled - deskilled

Affirmation

Simple form	V-ing form
I must deskill you must deskill she must deskill we must deskill you must deskill they must deskill	I must be deskilling you must be deskilling she must be deskilling we must be deskilling you must be deskilling they must be deskilling
Perfect	V-ing perfect
I must have deskilled you must have deskilled she must have deskilled we must have deskilled you must have deskilled they must have deskilled	I must have been deskilling you must have been deskilling she must have been deskilling we must have been deskilling you must have been deskilling they must have been deskilling

Negation

Simple form	V-ing form
I mustn't deskill you mustn't deskill she mustn't deskill we mustn't deskill you mustn't deskill they mustn't deskill	I mustn't be deskilling you mustn't be deskilling she mustn't be deskilling we mustn't be deskilling you mustn't be deskilling they mustn't be deskilling
Perfect	V-ing perfect
I mustn't have deskilled you mustn't have deskilled she mustn't have deskilled we mustn't have deskilled you mustn't have deskilled they mustn't have deskilled	I mustn't have been deskilling you mustn't have been deskilling she mustn't have been deskilling we mustn't have been deskilling you mustn't have been deskilling they mustn't have been deskilling

Interrogative form

Simple form	V-ing form
must I deskill? must you deskill? must she deskill? must we deskill? must you deskill? must they deskill?	must I be deskilling? must you be deskilling? must she be deskilling? must we be deskilling? must you be deskilling? must they be deskilling?
Perfect	V-ing perfect
must I have deskilled? must you have deskilled? must she have deskilled? must we have deskilled? must you have deskilled? must they have deskilled?	must I have been deskilling? must you have been deskilling? must she have been deskilling? must we have been deskilling? must you have been deskilling? must they have been deskilling?

Interro-negative form

Simple form	V-ing form
mustn't I deskill? mustn't you deskill? mustn't she deskill? mustn't we deskill? mustn't you deskill? mustn't they deskill?	mustn't I be deskilling? mustn't you be deskilling? mustn't she be deskilling? mustn't we be deskilling? mustn't you be deskilling? mustn't they be deskilling?
Perfect	V-ing perfect
mustn't I have deskilled? mustn't you have deskilled? mustn't she have deskilled? mustn't we have deskilled? mustn't you have deskilled? mustn't they have deskilled?	mustn't I have been deskilling? mustn't you have been deskilling? mustn't she have been deskilling? mustn't we have been deskilling? mustn't you have been deskilling? mustn't they have been deskilling?