English verb conjugation
MUST STICKLE

Regular verb: stickle - stickled - stickled

Affirmation

Simple form	V-ing form
I must stickle you must stickle he must stickle we must stickle you must stickle they must stickle	I must be stickling you must be stickling he must be stickling we must be stickling you must be stickling they must be stickling
Perfect	V-ing perfect
I must have stickled you must have stickled he must have stickled we must have stickled you must have stickled they must have stickled	I must have been stickling you must have been stickling he must have been stickling we must have been stickling you must have been stickling they must have been stickling

Negation

Simple form	V-ing form
I must not stickle you must not stickle he must not stickle we must not stickle you must not stickle they must not stickle	I must not be stickling you must not be stickling he must not be stickling we must not be stickling you must not be stickling they must not be stickling
Perfect	V-ing perfect
I must not have stickled you must not have stickled he must not have stickled we must not have stickled you must not have stickled they must not have stickled	I must not have been stickling you must not have been stickling he must not have been stickling we must not have been stickling you must not have been stickling they must not have been stickling

Interrogative form

Simple form	V-ing form
must I stickle? must you stickle? must he stickle? must we stickle? must you stickle? must they stickle?	must I be stickling? must you be stickling? must he be stickling? must we be stickling? must you be stickling? must they be stickling?
Perfect	V-ing perfect
must I have stickled? must you have stickled? must he have stickled? must we have stickled? must you have stickled? must they have stickled?	must I have been stickling? must you have been stickling? must he have been stickling? must we have been stickling? must you have been stickling? must they have been stickling?

Interro-negative form

Simple form	V-ing form
must I not stickle? must you not stickle? must he not stickle? must we not stickle? must you not stickle? must they not stickle?	must I not be stickling? must you not be stickling? must he not be stickling? must we not be stickling? must you not be stickling? must they not be stickling?
Perfect	V-ing perfect
must I not have stickled? must you not have stickled? must he not have stickled? must we not have stickled? must you not have stickled? must they not have stickled?	must I not have been stickling? must you not have been stickling? must he not have been stickling? must we not have been stickling? must you not have been stickling? must they not have been stickling?