English verb conjugation
COULD SCEND

Regular verb: scend - scended - scended

Affirmation

Simple form	V-ing form
I could scend you could scend he could scend we could scend you could scend they could scend	I could be scending you could be scending he could be scending we could be scending you could be scending they could be scending
Perfect	V-ing perfect
I could have scended you could have scended he could have scended we could have scended you could have scended they could have scended	I could have been scending you could have been scending he could have been scending we could have been scending you could have been scending they could have been scending

Negation

Simple form	V-ing form
I couldn't scend you couldn't scend he couldn't scend we couldn't scend you couldn't scend they couldn't scend	I couldn't be scending you couldn't be scending he couldn't be scending we couldn't be scending you couldn't be scending they couldn't be scending
Perfect	V-ing perfect
I couldn't have scended you couldn't have scended he couldn't have scended we couldn't have scended you couldn't have scended they couldn't have scended	I couldn't have been scending you couldn't have been scending he couldn't have been scending we couldn't have been scending you couldn't have been scending they couldn't have been scending

Interrogative form

Simple form	V-ing form
could I scend? could you scend? could he scend? could we scend? could you scend? could they scend?	could I be scending? could you be scending? could he be scending? could we be scending? could you be scending? could they be scending?
Perfect	V-ing perfect
could I have scended? could you have scended? could he have scended? could we have scended? could you have scended? could they have scended?	could I have been scending? could you have been scending? could he have been scending? could we have been scending? could you have been scending? could they have been scending?

Interro-negative form

Simple form	V-ing form
couldn't I scend? couldn't you scend? couldn't he scend? couldn't we scend? couldn't you scend? couldn't they scend?	couldn't I be scending? couldn't you be scending? couldn't he be scending? couldn't we be scending? couldn't you be scending? couldn't they be scending?
Perfect	V-ing perfect
couldn't I have scended? couldn't you have scended? couldn't he have scended? couldn't we have scended? couldn't you have scended? couldn't they have scended?	couldn't I have been scending? couldn't you have been scending? couldn't he have been scending? couldn't we have been scending? couldn't you have been scending? couldn't they have been scending?