can subtend
Regular verb: subtend - subtended- subtended

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

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot subtend
you cannot subtend
she cannot subtend
we cannot subtend
you cannot subtend
they cannot subtend 	I cannot be subtending
you cannot be subtending
she cannot be subtending
we cannot be subtending
you cannot be subtending
they cannot be subtending	I cannot have subtended
you cannot have subtended
she cannot have subtended
we cannot have subtended
you cannot have subtended
they cannot have subtended	I cannot have been subtending
you cannot have been subtending
she cannot have been subtending
we cannot have been subtending
you cannot have been subtending
they cannot have been subtending	

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

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