English verb conjugation
MUST ESPY

Regular verb: espy - espied - espied

Affirmation

Simple form	V-ing form
I must espy you must espy she must espy we must espy you must espy they must espy	I must be espying you must be espying she must be espying we must be espying you must be espying they must be espying
Perfect	V-ing perfect
I must have espied you must have espied she must have espied we must have espied you must have espied they must have espied	I must have been espying you must have been espying she must have been espying we must have been espying you must have been espying they must have been espying

Negation

Simple form	V-ing form
I mustn't espy you mustn't espy she mustn't espy we mustn't espy you mustn't espy they mustn't espy	I mustn't be espying you mustn't be espying she mustn't be espying we mustn't be espying you mustn't be espying they mustn't be espying
Perfect	V-ing perfect
I mustn't have espied you mustn't have espied she mustn't have espied we mustn't have espied you mustn't have espied they mustn't have espied	I mustn't have been espying you mustn't have been espying she mustn't have been espying we mustn't have been espying you mustn't have been espying they mustn't have been espying

Interrogative form

Simple form	V-ing form
must I espy? must you espy? must she espy? must we espy? must you espy? must they espy?	must I be espying? must you be espying? must she be espying? must we be espying? must you be espying? must they be espying?
Perfect	V-ing perfect
must I have espied? must you have espied? must she have espied? must we have espied? must you have espied? must they have espied?	must I have been espying? must you have been espying? must she have been espying? must we have been espying? must you have been espying? must they have been espying?

Interro-negative form

Simple form	V-ing form
mustn't I espy? mustn't you espy? mustn't she espy? mustn't we espy? mustn't you espy? mustn't they espy?	mustn't I be espying? mustn't you be espying? mustn't she be espying? mustn't we be espying? mustn't you be espying? mustn't they be espying?
Perfect	V-ing perfect
mustn't I have espied? mustn't you have espied? mustn't she have espied? mustn't we have espied? mustn't you have espied? mustn't they have espied?	mustn't I have been espying? mustn't you have been espying? mustn't she have been espying? mustn't we have been espying? mustn't you have been espying? mustn't they have been espying?