English verb conjugation
MUST SUCKLE

Regular verb: suckle - suckled - suckled

Affirmation

Simple form	V-ing form
I must suckle you must suckle he must suckle we must suckle you must suckle they must suckle	I must be suckling you must be suckling he must be suckling we must be suckling you must be suckling they must be suckling
Perfect	V-ing perfect
I must have suckled you must have suckled he must have suckled we must have suckled you must have suckled they must have suckled	I must have been suckling you must have been suckling he must have been suckling we must have been suckling you must have been suckling they must have been suckling

Negation

Simple form	V-ing form
I mustn't suckle you mustn't suckle he mustn't suckle we mustn't suckle you mustn't suckle they mustn't suckle	I mustn't be suckling you mustn't be suckling he mustn't be suckling we mustn't be suckling you mustn't be suckling they mustn't be suckling
Perfect	V-ing perfect
I mustn't have suckled you mustn't have suckled he mustn't have suckled we mustn't have suckled you mustn't have suckled they mustn't have suckled	I mustn't have been suckling you mustn't have been suckling he mustn't have been suckling we mustn't have been suckling you mustn't have been suckling they mustn't have been suckling

Interrogative form

Simple form	V-ing form
must I suckle? must you suckle? must he suckle? must we suckle? must you suckle? must they suckle?	must I be suckling? must you be suckling? must he be suckling? must we be suckling? must you be suckling? must they be suckling?
Perfect	V-ing perfect
must I have suckled? must you have suckled? must he have suckled? must we have suckled? must you have suckled? must they have suckled?	must I have been suckling? must you have been suckling? must he have been suckling? must we have been suckling? must you have been suckling? must they have been suckling?

Interro-negative form

Simple form	V-ing form
mustn't I suckle? mustn't you suckle? mustn't he suckle? mustn't we suckle? mustn't you suckle? mustn't they suckle?	mustn't I be suckling? mustn't you be suckling? mustn't he be suckling? mustn't we be suckling? mustn't you be suckling? mustn't they be suckling?
Perfect	V-ing perfect
mustn't I have suckled? mustn't you have suckled? mustn't he have suckled? mustn't we have suckled? mustn't you have suckled? mustn't they have suckled?	mustn't I have been suckling? mustn't you have been suckling? mustn't he have been suckling? mustn't we have been suckling? mustn't you have been suckling? mustn't they have been suckling?