English verb conjugation
MUST SKIP

Regular verb: skip - skipped - skipped

Affirmation

Simple form	V-ing form
I must skip you must skip she must skip we must skip you must skip they must skip	I must be skipping you must be skipping she 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 she 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 she 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 must not skip you must not skip she must not skip we must not skip you must not skip they must not skip	I must not be skipping you must not be skipping she must not be skipping we must not be skipping you must not be skipping they must not be skipping
Perfect	V-ing perfect
I must not have skipped you must not have skipped she must not have skipped we must not have skipped you must not have skipped they must not have skipped	I must not have been skipping you must not have been skipping she must not have been skipping we must not have been skipping you must not have been skipping they must not have been skipping

Interrogative form

Simple form	V-ing form
must I skip? must you skip? must she skip? must we skip? must you skip? must they skip?	must I be skipping? must you be skipping? must she 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 she 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 she 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
must I not skip? must you not skip? must she not skip? must we not skip? must you not skip? must they not skip?	must I not be skipping? must you not be skipping? must she not be skipping? must we not be skipping? must you not be skipping? must they not be skipping?
Perfect	V-ing perfect
must I not have skipped? must you not have skipped? must she not have skipped? must we not have skipped? must you not have skipped? must they not have skipped?	must I not have been skipping? must you not have been skipping? must she not have been skipping? must we not have been skipping? must you not have been skipping? must they not have been skipping?