English verb conjugation
CAN SUBTEND

Regular verb: subtend - subtended - subtended

Affirmation

Simple form	V-ing form
I can subtend you can subtend he can subtend we can subtend you can subtend they can subtend	I can be subtending you can be subtending he can be subtending we can be subtending you can be subtending they can be subtending
Perfect	V-ing perfect
I can have subtended you can have subtended he 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 he 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
I can't subtend you can't subtend he can't subtend we can't subtend you can't subtend they can't subtend	I can't be subtending you can't be subtending he can't be subtending we can't be subtending you can't be subtending they can't be subtending
Perfect	V-ing perfect
I can't have subtended you can't have subtended he can't have subtended we can't have subtended you can't have subtended they can't have subtended	I can't have been subtending you can't have been subtending he can't have been subtending we can't have been subtending you can't have been subtending they can't have been subtending

Interrogative form

Simple form	V-ing form
can I subtend? can you subtend? can he subtend? can we subtend? can you subtend? can they subtend?	can I be subtending? can you be subtending? can he be subtending? can we be subtending? can you be subtending? can they be subtending?
Perfect	V-ing perfect
can I have subtended? can you have subtended? can he 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 he 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
can't I subtend? can't you subtend? can't he subtend? can't we subtend? can't you subtend? can't they subtend?	can't I be subtending? can't you be subtending? can't he be subtending? can't we be subtending? can't you be subtending? can't they be subtending?
Perfect	V-ing perfect
can't I have subtended? can't you have subtended? can't he have subtended? can't we have subtended? can't you have subtended? can't they have subtended?	can't I have been subtending? can't you have been subtending? can't he have been subtending? can't we have been subtending? can't you have been subtending? can't they have been subtending?