English verb conjugation
COULD PERPEND

Regular verb: perpend - perpended - perpended

Affirmation

Simple form	V-ing form
I could perpend you could perpend he could perpend we could perpend you could perpend they could perpend	I could be perpending you could be perpending he could be perpending we could be perpending you could be perpending they could be perpending
Perfect	V-ing perfect
I could have perpended you could have perpended he could have perpended we could have perpended you could have perpended they could have perpended	I could have been perpending you could have been perpending he could have been perpending we could have been perpending you could have been perpending they could have been perpending

Negation

Simple form	V-ing form
I couldn't perpend you couldn't perpend he couldn't perpend we couldn't perpend you couldn't perpend they couldn't perpend	I couldn't be perpending you couldn't be perpending he couldn't be perpending we couldn't be perpending you couldn't be perpending they couldn't be perpending
Perfect	V-ing perfect
I couldn't have perpended you couldn't have perpended he couldn't have perpended we couldn't have perpended you couldn't have perpended they couldn't have perpended	I couldn't have been perpending you couldn't have been perpending he couldn't have been perpending we couldn't have been perpending you couldn't have been perpending they couldn't have been perpending

Interrogative form

Simple form	V-ing form
could I perpend? could you perpend? could he perpend? could we perpend? could you perpend? could they perpend?	could I be perpending? could you be perpending? could he be perpending? could we be perpending? could you be perpending? could they be perpending?
Perfect	V-ing perfect
could I have perpended? could you have perpended? could he have perpended? could we have perpended? could you have perpended? could they have perpended?	could I have been perpending? could you have been perpending? could he have been perpending? could we have been perpending? could you have been perpending? could they have been perpending?

Interro-negative form

Simple form	V-ing form
couldn't I perpend? couldn't you perpend? couldn't he perpend? couldn't we perpend? couldn't you perpend? couldn't they perpend?	couldn't I be perpending? couldn't you be perpending? couldn't he be perpending? couldn't we be perpending? couldn't you be perpending? couldn't they be perpending?
Perfect	V-ing perfect
couldn't I have perpended? couldn't you have perpended? couldn't he have perpended? couldn't we have perpended? couldn't you have perpended? couldn't they have perpended?	couldn't I have been perpending? couldn't you have been perpending? couldn't he have been perpending? couldn't we have been perpending? couldn't you have been perpending? couldn't they have been perpending?