English verb conjugation
MUST MUSCLE

Regular verb: muscle - muscled - muscled

Affirmation

Simple form	V-ing form
I must muscle you must muscle she must muscle we must muscle you must muscle they must muscle	I must be muscling you must be muscling she must be muscling we must be muscling you must be muscling they must be muscling
Perfect	V-ing perfect
I must have muscled you must have muscled she must have muscled we must have muscled you must have muscled they must have muscled	I must have been muscling you must have been muscling she must have been muscling we must have been muscling you must have been muscling they must have been muscling

Negation

Simple form	V-ing form
I mustn't muscle you mustn't muscle she mustn't muscle we mustn't muscle you mustn't muscle they mustn't muscle	I mustn't be muscling you mustn't be muscling she mustn't be muscling we mustn't be muscling you mustn't be muscling they mustn't be muscling
Perfect	V-ing perfect
I mustn't have muscled you mustn't have muscled she mustn't have muscled we mustn't have muscled you mustn't have muscled they mustn't have muscled	I mustn't have been muscling you mustn't have been muscling she mustn't have been muscling we mustn't have been muscling you mustn't have been muscling they mustn't have been muscling

Interrogative form

Simple form	V-ing form
must I muscle? must you muscle? must she muscle? must we muscle? must you muscle? must they muscle?	must I be muscling? must you be muscling? must she be muscling? must we be muscling? must you be muscling? must they be muscling?
Perfect	V-ing perfect
must I have muscled? must you have muscled? must she have muscled? must we have muscled? must you have muscled? must they have muscled?	must I have been muscling? must you have been muscling? must she have been muscling? must we have been muscling? must you have been muscling? must they have been muscling?

Interro-negative form

Simple form	V-ing form
mustn't I muscle? mustn't you muscle? mustn't she muscle? mustn't we muscle? mustn't you muscle? mustn't they muscle?	mustn't I be muscling? mustn't you be muscling? mustn't she be muscling? mustn't we be muscling? mustn't you be muscling? mustn't they be muscling?
Perfect	V-ing perfect
mustn't I have muscled? mustn't you have muscled? mustn't she have muscled? mustn't we have muscled? mustn't you have muscled? mustn't they have muscled?	mustn't I have been muscling? mustn't you have been muscling? mustn't she have been muscling? mustn't we have been muscling? mustn't you have been muscling? mustn't they have been muscling?