must letch
Regular verb: letch - letched- letched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must letch
you must letch
he must letch
we must letch
you must letch
they must letch 	I must be letching
you must be letching
he must be letching
we must be letching
you must be letching
they must be letching	I must have letched
you must have letched
he must have letched
we must have letched
you must have letched
they must have letched	I must have been letching
you must have been letching
he must have been letching
we must have been letching
you must have been letching
they must have been letching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't letch
you mustn't letch
he mustn't letch
we mustn't letch
you mustn't letch
they mustn't letch 	I mustn't be letching
you mustn't be letching
he mustn't be letching
we mustn't be letching
you mustn't be letching
they mustn't be letching	I mustn't have letched
you mustn't have letched
he mustn't have letched
we mustn't have letched
you mustn't have letched
they mustn't have letched	I mustn't have been letching
you mustn't have been letching
he mustn't have been letching
we mustn't have been letching
you mustn't have been letching
they mustn't have been letching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I letch?
must you letch?
must he letch?
must we letch?
must you letch?
must they letch? 	must I be letching?
must you be letching?
must he be letching?
must we be letching?
must you be letching?
must they be letching? 	must I have letched?
must you have letched?
must he have letched?
must we have letched?
must you have letched?
must they have letched? 	must I have been letching?
must you have been letching?
must he have been letching?
must we have been letching?
must you have been letching?
must they have been letching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I letch?
mustn't you letch?
mustn't he letch?
mustn't we letch?
mustn't you letch?
mustn't they letch? 	mustn't I be letching?
mustn't you be letching?
mustn't he be letching?
mustn't we be letching?
mustn't you be letching?
mustn't they be letching? 	mustn't I have letched?
mustn't you have letched?
mustn't he have letched?
mustn't we have letched?
mustn't you have letched?
mustn't they have letched? 	mustn't I have been letching?
mustn't you have been letching?
mustn't he have been letching?
mustn't we have been letching?
mustn't you have been letching?
mustn't they have been letching?