English verb conjugation
MUST FIDDLE

Regular verb: fiddle - fiddled - fiddled

Affirmation

Simple form	V-ing form
I must fiddle you must fiddle she must fiddle we must fiddle you must fiddle they must fiddle	I must be fiddling you must be fiddling she must be fiddling we must be fiddling you must be fiddling they must be fiddling
Perfect	V-ing perfect
I must have fiddled you must have fiddled she must have fiddled we must have fiddled you must have fiddled they must have fiddled	I must have been fiddling you must have been fiddling she must have been fiddling we must have been fiddling you must have been fiddling they must have been fiddling

Negation

Simple form	V-ing form
I mustn't fiddle you mustn't fiddle she mustn't fiddle we mustn't fiddle you mustn't fiddle they mustn't fiddle	I mustn't be fiddling you mustn't be fiddling she mustn't be fiddling we mustn't be fiddling you mustn't be fiddling they mustn't be fiddling
Perfect	V-ing perfect
I mustn't have fiddled you mustn't have fiddled she mustn't have fiddled we mustn't have fiddled you mustn't have fiddled they mustn't have fiddled	I mustn't have been fiddling you mustn't have been fiddling she mustn't have been fiddling we mustn't have been fiddling you mustn't have been fiddling they mustn't have been fiddling

Interrogative form

Simple form	V-ing form
must I fiddle? must you fiddle? must she fiddle? must we fiddle? must you fiddle? must they fiddle?	must I be fiddling? must you be fiddling? must she be fiddling? must we be fiddling? must you be fiddling? must they be fiddling?
Perfect	V-ing perfect
must I have fiddled? must you have fiddled? must she have fiddled? must we have fiddled? must you have fiddled? must they have fiddled?	must I have been fiddling? must you have been fiddling? must she have been fiddling? must we have been fiddling? must you have been fiddling? must they have been fiddling?

Interro-negative form

Simple form	V-ing form
mustn't I fiddle? mustn't you fiddle? mustn't she fiddle? mustn't we fiddle? mustn't you fiddle? mustn't they fiddle?	mustn't I be fiddling? mustn't you be fiddling? mustn't she be fiddling? mustn't we be fiddling? mustn't you be fiddling? mustn't they be fiddling?
Perfect	V-ing perfect
mustn't I have fiddled? mustn't you have fiddled? mustn't she have fiddled? mustn't we have fiddled? mustn't you have fiddled? mustn't they have fiddled?	mustn't I have been fiddling? mustn't you have been fiddling? mustn't she have been fiddling? mustn't we have been fiddling? mustn't you have been fiddling? mustn't they have been fiddling?