English verb conjugation
MUST SQUIRREL

Regular verb: squirrel - squirreled - squirreled

Affirmation

Simple form	V-ing form
I must squirrel you must squirrel she must squirrel we must squirrel you must squirrel they must squirrel	I must be squirreling you must be squirreling she must be squirreling we must be squirreling you must be squirreling they must be squirreling
Perfect	V-ing perfect
I must have squirreled you must have squirreled she must have squirreled we must have squirreled you must have squirreled they must have squirreled	I must have been squirreling you must have been squirreling she must have been squirreling we must have been squirreling you must have been squirreling they must have been squirreling

Negation

Simple form	V-ing form
I must not squirrel you must not squirrel she must not squirrel we must not squirrel you must not squirrel they must not squirrel	I must not be squirreling you must not be squirreling she must not be squirreling we must not be squirreling you must not be squirreling they must not be squirreling
Perfect	V-ing perfect
I must not have squirreled you must not have squirreled she must not have squirreled we must not have squirreled you must not have squirreled they must not have squirreled	I must not have been squirreling you must not have been squirreling she must not have been squirreling we must not have been squirreling you must not have been squirreling they must not have been squirreling

Interrogative form

Simple form	V-ing form
must I squirrel? must you squirrel? must she squirrel? must we squirrel? must you squirrel? must they squirrel?	must I be squirreling? must you be squirreling? must she be squirreling? must we be squirreling? must you be squirreling? must they be squirreling?
Perfect	V-ing perfect
must I have squirreled? must you have squirreled? must she have squirreled? must we have squirreled? must you have squirreled? must they have squirreled?	must I have been squirreling? must you have been squirreling? must she have been squirreling? must we have been squirreling? must you have been squirreling? must they have been squirreling?

Interro-negative form

Simple form	V-ing form
must I not squirrel? must you not squirrel? must she not squirrel? must we not squirrel? must you not squirrel? must they not squirrel?	must I not be squirreling? must you not be squirreling? must she not be squirreling? must we not be squirreling? must you not be squirreling? must they not be squirreling?
Perfect	V-ing perfect
must I not have squirreled? must you not have squirreled? must she not have squirreled? must we not have squirreled? must you not have squirreled? must they not have squirreled?	must I not have been squirreling? must you not have been squirreling? must she not have been squirreling? must we not have been squirreling? must you not have been squirreling? must they not have been squirreling?