must swindle
Regular verb: swindle - swindled- swindled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must swindle
you must swindle
he must swindle
we must swindle
you must swindle
they must swindle 	I must be swindling
you must be swindling
he must be swindling
we must be swindling
you must be swindling
they must be swindling	I must have swindled
you must have swindled
he must have swindled
we must have swindled
you must have swindled
they must have swindled	I must have been swindling
you must have been swindling
he must have been swindling
we must have been swindling
you must have been swindling
they must have been swindling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't swindle
you mustn't swindle
he mustn't swindle
we mustn't swindle
you mustn't swindle
they mustn't swindle 	I mustn't be swindling
you mustn't be swindling
he mustn't be swindling
we mustn't be swindling
you mustn't be swindling
they mustn't be swindling	I mustn't have swindled
you mustn't have swindled
he mustn't have swindled
we mustn't have swindled
you mustn't have swindled
they mustn't have swindled	I mustn't have been swindling
you mustn't have been swindling
he mustn't have been swindling
we mustn't have been swindling
you mustn't have been swindling
they mustn't have been swindling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I swindle?
must you swindle?
must he swindle?
must we swindle?
must you swindle?
must they swindle? 	must I be swindling?
must you be swindling?
must he be swindling?
must we be swindling?
must you be swindling?
must they be swindling? 	must I have swindled?
must you have swindled?
must he have swindled?
must we have swindled?
must you have swindled?
must they have swindled? 	must I have been swindling?
must you have been swindling?
must he have been swindling?
must we have been swindling?
must you have been swindling?
must they have been swindling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I swindle?
mustn't you swindle?
mustn't he swindle?
mustn't we swindle?
mustn't you swindle?
mustn't they swindle? 	mustn't I be swindling?
mustn't you be swindling?
mustn't he be swindling?
mustn't we be swindling?
mustn't you be swindling?
mustn't they be swindling? 	mustn't I have swindled?
mustn't you have swindled?
mustn't he have swindled?
mustn't we have swindled?
mustn't you have swindled?
mustn't they have swindled? 	mustn't I have been swindling?
mustn't you have been swindling?
mustn't he have been swindling?
mustn't we have been swindling?
mustn't you have been swindling?
mustn't they have been swindling?