must diddle
Regular verb: diddle - diddled- diddled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must diddle
you must diddle
he must diddle
we must diddle
you must diddle
they must diddle 	I must be diddling
you must be diddling
he must be diddling
we must be diddling
you must be diddling
they must be diddling	I must have diddled
you must have diddled
he must have diddled
we must have diddled
you must have diddled
they must have diddled	I must have been diddling
you must have been diddling
he must have been diddling
we must have been diddling
you must have been diddling
they must have been diddling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't diddle
you mustn't diddle
he mustn't diddle
we mustn't diddle
you mustn't diddle
they mustn't diddle 	I mustn't be diddling
you mustn't be diddling
he mustn't be diddling
we mustn't be diddling
you mustn't be diddling
they mustn't be diddling	I mustn't have diddled
you mustn't have diddled
he mustn't have diddled
we mustn't have diddled
you mustn't have diddled
they mustn't have diddled	I mustn't have been diddling
you mustn't have been diddling
he mustn't have been diddling
we mustn't have been diddling
you mustn't have been diddling
they mustn't have been diddling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I diddle?
must you diddle?
must he diddle?
must we diddle?
must you diddle?
must they diddle? 	must I be diddling?
must you be diddling?
must he be diddling?
must we be diddling?
must you be diddling?
must they be diddling? 	must I have diddled?
must you have diddled?
must he have diddled?
must we have diddled?
must you have diddled?
must they have diddled? 	must I have been diddling?
must you have been diddling?
must he have been diddling?
must we have been diddling?
must you have been diddling?
must they have been diddling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I diddle?
mustn't you diddle?
mustn't he diddle?
mustn't we diddle?
mustn't you diddle?
mustn't they diddle? 	mustn't I be diddling?
mustn't you be diddling?
mustn't he be diddling?
mustn't we be diddling?
mustn't you be diddling?
mustn't they be diddling? 	mustn't I have diddled?
mustn't you have diddled?
mustn't he have diddled?
mustn't we have diddled?
mustn't you have diddled?
mustn't they have diddled? 	mustn't I have been diddling?
mustn't you have been diddling?
mustn't he have been diddling?
mustn't we have been diddling?
mustn't you have been diddling?
mustn't they have been diddling?