English verb conjugation
MUST SKIRMISH

Regular verb: skirmish - skirmished - skirmished

Affirmation

Simple form	V-ing form
I must skirmish you must skirmish he must skirmish we must skirmish you must skirmish they must skirmish	I must be skirmishing you must be skirmishing he must be skirmishing we must be skirmishing you must be skirmishing they must be skirmishing
Perfect	V-ing perfect
I must have skirmished you must have skirmished he must have skirmished we must have skirmished you must have skirmished they must have skirmished	I must have been skirmishing you must have been skirmishing he must have been skirmishing we must have been skirmishing you must have been skirmishing they must have been skirmishing

Negation

Simple form	V-ing form
I must not skirmish you must not skirmish he must not skirmish we must not skirmish you must not skirmish they must not skirmish	I must not be skirmishing you must not be skirmishing he must not be skirmishing we must not be skirmishing you must not be skirmishing they must not be skirmishing
Perfect	V-ing perfect
I must not have skirmished you must not have skirmished he must not have skirmished we must not have skirmished you must not have skirmished they must not have skirmished	I must not have been skirmishing you must not have been skirmishing he must not have been skirmishing we must not have been skirmishing you must not have been skirmishing they must not have been skirmishing

Interrogative form

Simple form	V-ing form
must I skirmish? must you skirmish? must he skirmish? must we skirmish? must you skirmish? must they skirmish?	must I be skirmishing? must you be skirmishing? must he be skirmishing? must we be skirmishing? must you be skirmishing? must they be skirmishing?
Perfect	V-ing perfect
must I have skirmished? must you have skirmished? must he have skirmished? must we have skirmished? must you have skirmished? must they have skirmished?	must I have been skirmishing? must you have been skirmishing? must he have been skirmishing? must we have been skirmishing? must you have been skirmishing? must they have been skirmishing?

Interro-negative form

Simple form	V-ing form
must I not skirmish? must you not skirmish? must he not skirmish? must we not skirmish? must you not skirmish? must they not skirmish?	must I not be skirmishing? must you not be skirmishing? must he not be skirmishing? must we not be skirmishing? must you not be skirmishing? must they not be skirmishing?
Perfect	V-ing perfect
must I not have skirmished? must you not have skirmished? must he not have skirmished? must we not have skirmished? must you not have skirmished? must they not have skirmished?	must I not have been skirmishing? must you not have been skirmishing? must he not have been skirmishing? must we not have been skirmishing? must you not have been skirmishing? must they not have been skirmishing?