English verb conjugation
MUST SKIP

Regular verb: skip - skipped - skipped

Affirmation

Simple form	V-ing form
I must skip you must skip he must skip we must skip you must skip they must skip	I must be skipping you must be skipping he must be skipping we must be skipping you must be skipping they must be skipping
Perfect	V-ing perfect
I must have skipped you must have skipped he must have skipped we must have skipped you must have skipped they must have skipped	I must have been skipping you must have been skipping he must have been skipping we must have been skipping you must have been skipping they must have been skipping

Negation

Simple form	V-ing form
I mustn't skip you mustn't skip he mustn't skip we mustn't skip you mustn't skip they mustn't skip	I mustn't be skipping you mustn't be skipping he mustn't be skipping we mustn't be skipping you mustn't be skipping they mustn't be skipping
Perfect	V-ing perfect
I mustn't have skipped you mustn't have skipped he mustn't have skipped we mustn't have skipped you mustn't have skipped they mustn't have skipped	I mustn't have been skipping you mustn't have been skipping he mustn't have been skipping we mustn't have been skipping you mustn't have been skipping they mustn't have been skipping

Interrogative form

Simple form	V-ing form
must I skip? must you skip? must he skip? must we skip? must you skip? must they skip?	must I be skipping? must you be skipping? must he be skipping? must we be skipping? must you be skipping? must they be skipping?
Perfect	V-ing perfect
must I have skipped? must you have skipped? must he have skipped? must we have skipped? must you have skipped? must they have skipped?	must I have been skipping? must you have been skipping? must he have been skipping? must we have been skipping? must you have been skipping? must they have been skipping?

Interro-negative form

Simple form	V-ing form
mustn't I skip? mustn't you skip? mustn't he skip? mustn't we skip? mustn't you skip? mustn't they skip?	mustn't I be skipping? mustn't you be skipping? mustn't he be skipping? mustn't we be skipping? mustn't you be skipping? mustn't they be skipping?
Perfect	V-ing perfect
mustn't I have skipped? mustn't you have skipped? mustn't he have skipped? mustn't we have skipped? mustn't you have skipped? mustn't they have skipped?	mustn't I have been skipping? mustn't you have been skipping? mustn't he have been skipping? mustn't we have been skipping? mustn't you have been skipping? mustn't they have been skipping?