may subtend
Regular verb: subtend - subtended- subtended

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may subtend
you may subtend
he may subtend
we may subtend
you may subtend
they may subtend 	I may be subtending
you may be subtending
he may be subtending
we may be subtending
you may be subtending
they may be subtending	I may have subtended
you may have subtended
he may have subtended
we may have subtended
you may have subtended
they may have subtended	I may have been subtending
you may have been subtending
he may have been subtending
we may have been subtending
you may have been subtending
they may have been subtending	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I may not subtend
you may not subtend
he may not subtend
we may not subtend
you may not subtend
they may not subtend 	I may not be subtending
you may not be subtending
he may not be subtending
we may not be subtending
you may not be subtending
they may not be subtending	I may not have subtended
you may not have subtended
he may not have subtended
we may not have subtended
you may not have subtended
they may not have subtended	I may not have been subtending
you may not have been subtending
he may not have been subtending
we may not have been subtending
you may not have been subtending
they may not have been subtending	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I subtend?
may you subtend?
may he subtend?
may we subtend?
may you subtend?
may they subtend? 	may I be subtending?
may you be subtending?
may he be subtending?
may we be subtending?
may you be subtending?
may they be subtending? 	may I have subtended?
may you have subtended?
may he have subtended?
may we have subtended?
may you have subtended?
may they have subtended? 	may I have been subtending?
may you have been subtending?
may he have been subtending?
may we have been subtending?
may you have been subtending?
may they have been subtending? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
may I not subtend?
may you not subtend?
may he not subtend?
may we not subtend?
may you not subtend?
may they not subtend? 	may I not be subtending?
may you not be subtending?
may he not be subtending?
may we not be subtending?
may you not be subtending?
may they not be subtending? 	may I not have subtended?
may you not have subtended?
may he not have subtended?
may we not have subtended?
may you not have subtended?
may they not have subtended? 	may I not have been subtending?
may you not have been subtending?
may he not have been subtending?
may we not have been subtending?
may you not have been subtending?
may they not have been subtending?