English verb conjugation
MUST LOP

Regular verb: lop - lopped - lopped

Affirmation

Simple form	V-ing form
I must lop you must lop he must lop we must lop you must lop they must lop	I must be lopping you must be lopping he must be lopping we must be lopping you must be lopping they must be lopping
Perfect	V-ing perfect
I must have lopped you must have lopped he must have lopped we must have lopped you must have lopped they must have lopped	I must have been lopping you must have been lopping he must have been lopping we must have been lopping you must have been lopping they must have been lopping

Negation

Simple form	V-ing form
I must not lop you must not lop he must not lop we must not lop you must not lop they must not lop	I must not be lopping you must not be lopping he must not be lopping we must not be lopping you must not be lopping they must not be lopping
Perfect	V-ing perfect
I must not have lopped you must not have lopped he must not have lopped we must not have lopped you must not have lopped they must not have lopped	I must not have been lopping you must not have been lopping he must not have been lopping we must not have been lopping you must not have been lopping they must not have been lopping

Interrogative form

Simple form	V-ing form
must I lop? must you lop? must he lop? must we lop? must you lop? must they lop?	must I be lopping? must you be lopping? must he be lopping? must we be lopping? must you be lopping? must they be lopping?
Perfect	V-ing perfect
must I have lopped? must you have lopped? must he have lopped? must we have lopped? must you have lopped? must they have lopped?	must I have been lopping? must you have been lopping? must he have been lopping? must we have been lopping? must you have been lopping? must they have been lopping?

Interro-negative form

Simple form	V-ing form
must I not lop? must you not lop? must he not lop? must we not lop? must you not lop? must they not lop?	must I not be lopping? must you not be lopping? must he not be lopping? must we not be lopping? must you not be lopping? must they not be lopping?
Perfect	V-ing perfect
must I not have lopped? must you not have lopped? must he not have lopped? must we not have lopped? must you not have lopped? must they not have lopped?	must I not have been lopping? must you not have been lopping? must he not have been lopping? must we not have been lopping? must you not have been lopping? must they not have been lopping?