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 may not calve
you may not calve
he may not calve
we may not calve
you may not calve
they may not calve 	I may not be calving
you may not be calving
he may not be calving
we may not be calving
you may not be calving
they may not be calving	I may not have calved
you may not have calved
he may not have calved
we may not have calved
you may not have calved
they may not have calved	I may not have been calving
you may not have been calving
he may not have been calving
we may not have been calving
you may not have been calving
they may not 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 	
may I not calve?
may you not calve?
may he not calve?
may we not calve?
may you not calve?
may they not calve? 	may I not be calving?
may you not be calving?
may he not be calving?
may we not be calving?
may you not be calving?
may they not be calving? 	may I not have calved?
may you not have calved?
may he not have calved?
may we not have calved?
may you not have calved?
may they not have calved? 	may I not have been calving?
may you not have been calving?
may he not have been calving?
may we not have been calving?
may you not have been calving?
may they not have been calving?