English verb conjugation
MUST FEIGN

Regular verb: feign - feigned - feigned

Affirmation

Simple form	V-ing form
I must feign you must feign she must feign we must feign you must feign they must feign	I must be feigning you must be feigning she must be feigning we must be feigning you must be feigning they must be feigning
Perfect	V-ing perfect
I must have feigned you must have feigned she must have feigned we must have feigned you must have feigned they must have feigned	I must have been feigning you must have been feigning she must have been feigning we must have been feigning you must have been feigning they must have been feigning

Negation

Simple form	V-ing form
I must not feign you must not feign she must not feign we must not feign you must not feign they must not feign	I must not be feigning you must not be feigning she must not be feigning we must not be feigning you must not be feigning they must not be feigning
Perfect	V-ing perfect
I must not have feigned you must not have feigned she must not have feigned we must not have feigned you must not have feigned they must not have feigned	I must not have been feigning you must not have been feigning she must not have been feigning we must not have been feigning you must not have been feigning they must not have been feigning

Interrogative form

Simple form	V-ing form
must I feign? must you feign? must she feign? must we feign? must you feign? must they feign?	must I be feigning? must you be feigning? must she be feigning? must we be feigning? must you be feigning? must they be feigning?
Perfect	V-ing perfect
must I have feigned? must you have feigned? must she have feigned? must we have feigned? must you have feigned? must they have feigned?	must I have been feigning? must you have been feigning? must she have been feigning? must we have been feigning? must you have been feigning? must they have been feigning?

Interro-negative form

Simple form	V-ing form
must I not feign? must you not feign? must she not feign? must we not feign? must you not feign? must they not feign?	must I not be feigning? must you not be feigning? must she not be feigning? must we not be feigning? must you not be feigning? must they not be feigning?
Perfect	V-ing perfect
must I not have feigned? must you not have feigned? must she not have feigned? must we not have feigned? must you not have feigned? must they not have feigned?	must I not have been feigning? must you not have been feigning? must she not have been feigning? must we not have been feigning? must you not have been feigning? must they not have been feigning?