may krass
Regular verb: krass - krassed- krassed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may krass
you may krass
he may krass
we may krass
you may krass
they may krass 	I may be krassing
you may be krassing
he may be krassing
we may be krassing
you may be krassing
they may be krassing	I may have krassed
you may have krassed
he may have krassed
we may have krassed
you may have krassed
they may have krassed	I may have been krassing
you may have been krassing
he may have been krassing
we may have been krassing
you may have been krassing
they may have been krassing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't krass
you mayn't krass
he mayn't krass
we mayn't krass
you mayn't krass
they mayn't krass 	I mayn't be krassing
you mayn't be krassing
he mayn't be krassing
we mayn't be krassing
you mayn't be krassing
they mayn't be krassing	I mayn't have krassed
you mayn't have krassed
he mayn't have krassed
we mayn't have krassed
you mayn't have krassed
they mayn't have krassed	I mayn't have been krassing
you mayn't have been krassing
he mayn't have been krassing
we mayn't have been krassing
you mayn't have been krassing
they mayn't have been krassing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I krass?
may you krass?
may he krass?
may we krass?
may you krass?
may they krass? 	may I be krassing?
may you be krassing?
may he be krassing?
may we be krassing?
may you be krassing?
may they be krassing? 	may I have krassed?
may you have krassed?
may he have krassed?
may we have krassed?
may you have krassed?
may they have krassed? 	may I have been krassing?
may you have been krassing?
may he have been krassing?
may we have been krassing?
may you have been krassing?
may they have been krassing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I krass?
mayn't you krass?
mayn't he krass?
mayn't we krass?
mayn't you krass?
mayn't they krass? 	mayn't I be krassing?
mayn't you be krassing?
mayn't he be krassing?
mayn't we be krassing?
mayn't you be krassing?
mayn't they be krassing? 	mayn't I have krassed?
mayn't you have krassed?
mayn't he have krassed?
mayn't we have krassed?
mayn't you have krassed?
mayn't they have krassed? 	mayn't I have been krassing?
mayn't you have been krassing?
mayn't he have been krassing?
mayn't we have been krassing?
mayn't you have been krassing?
mayn't they have been krassing?