English verb conjugation
MUST TURTLE

Regular verb: turtle - turtled - turtled

Affirmation

Simple form	V-ing form
I must turtle you must turtle he must turtle we must turtle you must turtle they must turtle	I must be turtling you must be turtling he must be turtling we must be turtling you must be turtling they must be turtling
Perfect	V-ing perfect
I must have turtled you must have turtled he must have turtled we must have turtled you must have turtled they must have turtled	I must have been turtling you must have been turtling he must have been turtling we must have been turtling you must have been turtling they must have been turtling

Negation

Simple form	V-ing form
I mustn't turtle you mustn't turtle he mustn't turtle we mustn't turtle you mustn't turtle they mustn't turtle	I mustn't be turtling you mustn't be turtling he mustn't be turtling we mustn't be turtling you mustn't be turtling they mustn't be turtling
Perfect	V-ing perfect
I mustn't have turtled you mustn't have turtled he mustn't have turtled we mustn't have turtled you mustn't have turtled they mustn't have turtled	I mustn't have been turtling you mustn't have been turtling he mustn't have been turtling we mustn't have been turtling you mustn't have been turtling they mustn't have been turtling

Interrogative form

Simple form	V-ing form
must I turtle? must you turtle? must he turtle? must we turtle? must you turtle? must they turtle?	must I be turtling? must you be turtling? must he be turtling? must we be turtling? must you be turtling? must they be turtling?
Perfect	V-ing perfect
must I have turtled? must you have turtled? must he have turtled? must we have turtled? must you have turtled? must they have turtled?	must I have been turtling? must you have been turtling? must he have been turtling? must we have been turtling? must you have been turtling? must they have been turtling?

Interro-negative form

Simple form	V-ing form
mustn't I turtle? mustn't you turtle? mustn't he turtle? mustn't we turtle? mustn't you turtle? mustn't they turtle?	mustn't I be turtling? mustn't you be turtling? mustn't he be turtling? mustn't we be turtling? mustn't you be turtling? mustn't they be turtling?
Perfect	V-ing perfect
mustn't I have turtled? mustn't you have turtled? mustn't he have turtled? mustn't we have turtled? mustn't you have turtled? mustn't they have turtled?	mustn't I have been turtling? mustn't you have been turtling? mustn't he have been turtling? mustn't we have been turtling? mustn't you have been turtling? mustn't they have been turtling?