English verb conjugation
MUST APPRECIATE

Regular verb: appreciate - appreciated - appreciated

Affirmation

Simple form	V-ing form
I must appreciate you must appreciate she must appreciate we must appreciate you must appreciate they must appreciate	I must be appreciating you must be appreciating she must be appreciating we must be appreciating you must be appreciating they must be appreciating
Perfect	V-ing perfect
I must have appreciated you must have appreciated she must have appreciated we must have appreciated you must have appreciated they must have appreciated	I must have been appreciating you must have been appreciating she must have been appreciating we must have been appreciating you must have been appreciating they must have been appreciating

Negation

Simple form	V-ing form
I must not appreciate you must not appreciate she must not appreciate we must not appreciate you must not appreciate they must not appreciate	I must not be appreciating you must not be appreciating she must not be appreciating we must not be appreciating you must not be appreciating they must not be appreciating
Perfect	V-ing perfect
I must not have appreciated you must not have appreciated she must not have appreciated we must not have appreciated you must not have appreciated they must not have appreciated	I must not have been appreciating you must not have been appreciating she must not have been appreciating we must not have been appreciating you must not have been appreciating they must not have been appreciating

Interrogative form

Simple form	V-ing form
must I appreciate? must you appreciate? must she appreciate? must we appreciate? must you appreciate? must they appreciate?	must I be appreciating? must you be appreciating? must she be appreciating? must we be appreciating? must you be appreciating? must they be appreciating?
Perfect	V-ing perfect
must I have appreciated? must you have appreciated? must she have appreciated? must we have appreciated? must you have appreciated? must they have appreciated?	must I have been appreciating? must you have been appreciating? must she have been appreciating? must we have been appreciating? must you have been appreciating? must they have been appreciating?

Interro-negative form

Simple form	V-ing form
must I not appreciate? must you not appreciate? must she not appreciate? must we not appreciate? must you not appreciate? must they not appreciate?	must I not be appreciating? must you not be appreciating? must she not be appreciating? must we not be appreciating? must you not be appreciating? must they not be appreciating?
Perfect	V-ing perfect
must I not have appreciated? must you not have appreciated? must she not have appreciated? must we not have appreciated? must you not have appreciated? must they not have appreciated?	must I not have been appreciating? must you not have been appreciating? must she not have been appreciating? must we not have been appreciating? must you not have been appreciating? must they not have been appreciating?