English verb conjugation
MUST INTEREST

Regular verb: interest - interested - interested

Affirmation

Simple form	V-ing form
I must interest you must interest he must interest we must interest you must interest they must interest	I must be interesting you must be interesting he must be interesting we must be interesting you must be interesting they must be interesting
Perfect	V-ing perfect
I must have interested you must have interested he must have interested we must have interested you must have interested they must have interested	I must have been interesting you must have been interesting he must have been interesting we must have been interesting you must have been interesting they must have been interesting

Negation

Simple form	V-ing form
I must not interest you must not interest he must not interest we must not interest you must not interest they must not interest	I must not be interesting you must not be interesting he must not be interesting we must not be interesting you must not be interesting they must not be interesting
Perfect	V-ing perfect
I must not have interested you must not have interested he must not have interested we must not have interested you must not have interested they must not have interested	I must not have been interesting you must not have been interesting he must not have been interesting we must not have been interesting you must not have been interesting they must not have been interesting

Interrogative form

Simple form	V-ing form
must I interest? must you interest? must he interest? must we interest? must you interest? must they interest?	must I be interesting? must you be interesting? must he be interesting? must we be interesting? must you be interesting? must they be interesting?
Perfect	V-ing perfect
must I have interested? must you have interested? must he have interested? must we have interested? must you have interested? must they have interested?	must I have been interesting? must you have been interesting? must he have been interesting? must we have been interesting? must you have been interesting? must they have been interesting?

Interro-negative form

Simple form	V-ing form
must I not interest? must you not interest? must he not interest? must we not interest? must you not interest? must they not interest?	must I not be interesting? must you not be interesting? must he not be interesting? must we not be interesting? must you not be interesting? must they not be interesting?
Perfect	V-ing perfect
must I not have interested? must you not have interested? must he not have interested? must we not have interested? must you not have interested? must they not have interested?	must I not have been interesting? must you not have been interesting? must he not have been interesting? must we not have been interesting? must you not have been interesting? must they not have been interesting?