may calve
Regular verb: calve - calved- calved

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may calve
you may calve
he may calve
we may calve
you may calve
they may calve 	I may be calving
you may be calving
he may be calving
we may be calving
you may be calving
they may be calving	I may have calved
you may have calved
he may have calved
we may have calved
you may have calved
they may have calved	I may have been calving
you may have been calving
he may have been calving
we may have been calving
you may have been calving
they may have been calving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mayn't calve
you mayn't calve
he mayn't calve
we mayn't calve
you mayn't calve
they mayn't calve 	I mayn't be calving
you mayn't be calving
he mayn't be calving
we mayn't be calving
you mayn't be calving
they mayn't be calving	I mayn't have calved
you mayn't have calved
he mayn't have calved
we mayn't have calved
you mayn't have calved
they mayn't have calved	I mayn't have been calving
you mayn't have been calving
he mayn't have been calving
we mayn't have been calving
you mayn't have been calving
they mayn't have been calving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I calve?
may you calve?
may he calve?
may we calve?
may you calve?
may they calve? 	may I be calving?
may you be calving?
may he be calving?
may we be calving?
may you be calving?
may they be calving? 	may I have calved?
may you have calved?
may he have calved?
may we have calved?
may you have calved?
may they have calved? 	may I have been calving?
may you have been calving?
may he have been calving?
may we have been calving?
may you have been calving?
may they have been calving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mayn't I calve?
mayn't you calve?
mayn't he calve?
mayn't we calve?
mayn't you calve?
mayn't they calve? 	mayn't I be calving?
mayn't you be calving?
mayn't he be calving?
mayn't we be calving?
mayn't you be calving?
mayn't they be calving? 	mayn't I have calved?
mayn't you have calved?
mayn't he have calved?
mayn't we have calved?
mayn't you have calved?
mayn't they have calved? 	mayn't I have been calving?
mayn't you have been calving?
mayn't he have been calving?
mayn't we have been calving?
mayn't you have been calving?
mayn't they have been calving?