English verb conjugation
MUST SPOOK

Regular verb: spook - spooked - spooked

Affirmation

Simple form	V-ing form
I must spook you must spook she must spook we must spook you must spook they must spook	I must be spooking you must be spooking she must be spooking we must be spooking you must be spooking they must be spooking
Perfect	V-ing perfect
I must have spooked you must have spooked she must have spooked we must have spooked you must have spooked they must have spooked	I must have been spooking you must have been spooking she must have been spooking we must have been spooking you must have been spooking they must have been spooking

Negation

Simple form	V-ing form
I mustn't spook you mustn't spook she mustn't spook we mustn't spook you mustn't spook they mustn't spook	I mustn't be spooking you mustn't be spooking she mustn't be spooking we mustn't be spooking you mustn't be spooking they mustn't be spooking
Perfect	V-ing perfect
I mustn't have spooked you mustn't have spooked she mustn't have spooked we mustn't have spooked you mustn't have spooked they mustn't have spooked	I mustn't have been spooking you mustn't have been spooking she mustn't have been spooking we mustn't have been spooking you mustn't have been spooking they mustn't have been spooking

Interrogative form

Simple form	V-ing form
must I spook? must you spook? must she spook? must we spook? must you spook? must they spook?	must I be spooking? must you be spooking? must she be spooking? must we be spooking? must you be spooking? must they be spooking?
Perfect	V-ing perfect
must I have spooked? must you have spooked? must she have spooked? must we have spooked? must you have spooked? must they have spooked?	must I have been spooking? must you have been spooking? must she have been spooking? must we have been spooking? must you have been spooking? must they have been spooking?

Interro-negative form

Simple form	V-ing form
mustn't I spook? mustn't you spook? mustn't she spook? mustn't we spook? mustn't you spook? mustn't they spook?	mustn't I be spooking? mustn't you be spooking? mustn't she be spooking? mustn't we be spooking? mustn't you be spooking? mustn't they be spooking?
Perfect	V-ing perfect
mustn't I have spooked? mustn't you have spooked? mustn't she have spooked? mustn't we have spooked? mustn't you have spooked? mustn't they have spooked?	mustn't I have been spooking? mustn't you have been spooking? mustn't she have been spooking? mustn't we have been spooking? mustn't you have been spooking? mustn't they have been spooking?