must piddle
Regular verb: piddle - piddled- piddled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must piddle
you must piddle
he must piddle
we must piddle
you must piddle
they must piddle 	I must be piddling
you must be piddling
he must be piddling
we must be piddling
you must be piddling
they must be piddling	I must have piddled
you must have piddled
he must have piddled
we must have piddled
you must have piddled
they must have piddled	I must have been piddling
you must have been piddling
he must have been piddling
we must have been piddling
you must have been piddling
they must have been piddling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not piddle
you must not piddle
he must not piddle
we must not piddle
you must not piddle
they must not piddle 	I must not be piddling
you must not be piddling
he must not be piddling
we must not be piddling
you must not be piddling
they must not be piddling	I must not have piddled
you must not have piddled
he must not have piddled
we must not have piddled
you must not have piddled
they must not have piddled	I must not have been piddling
you must not have been piddling
he must not have been piddling
we must not have been piddling
you must not have been piddling
they must not have been piddling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I piddle?
must you piddle?
must he piddle?
must we piddle?
must you piddle?
must they piddle? 	must I be piddling?
must you be piddling?
must he be piddling?
must we be piddling?
must you be piddling?
must they be piddling? 	must I have piddled?
must you have piddled?
must he have piddled?
must we have piddled?
must you have piddled?
must they have piddled? 	must I have been piddling?
must you have been piddling?
must he have been piddling?
must we have been piddling?
must you have been piddling?
must they have been piddling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not piddle?
must you not piddle?
must he not piddle?
must we not piddle?
must you not piddle?
must they not piddle? 	must I not be piddling?
must you not be piddling?
must he not be piddling?
must we not be piddling?
must you not be piddling?
must they not be piddling? 	must I not have piddled?
must you not have piddled?
must he not have piddled?
must we not have piddled?
must you not have piddled?
must they not have piddled? 	must I not have been piddling?
must you not have been piddling?
must he not have been piddling?
must we not have been piddling?
must you not have been piddling?
must they not have been piddling?