English verb conjugation
COULD TERRACE

Regular verb: terrace - terraced - terraced

Affirmation

Simple form	V-ing form
I could terrace you could terrace he could terrace we could terrace you could terrace they could terrace	I could be terracing you could be terracing he could be terracing we could be terracing you could be terracing they could be terracing
Perfect	V-ing perfect
I could have terraced you could have terraced he could have terraced we could have terraced you could have terraced they could have terraced	I could have been terracing you could have been terracing he could have been terracing we could have been terracing you could have been terracing they could have been terracing

Negation

Simple form	V-ing form
I could not terrace you could not terrace he could not terrace we could not terrace you could not terrace they could not terrace	I could not be terracing you could not be terracing he could not be terracing we could not be terracing you could not be terracing they could not be terracing
Perfect	V-ing perfect
I could not have terraced you could not have terraced he could not have terraced we could not have terraced you could not have terraced they could not have terraced	I could not have been terracing you could not have been terracing he could not have been terracing we could not have been terracing you could not have been terracing they could not have been terracing

Interrogative form

Simple form	V-ing form
could I terrace? could you terrace? could he terrace? could we terrace? could you terrace? could they terrace?	could I be terracing? could you be terracing? could he be terracing? could we be terracing? could you be terracing? could they be terracing?
Perfect	V-ing perfect
could I have terraced? could you have terraced? could he have terraced? could we have terraced? could you have terraced? could they have terraced?	could I have been terracing? could you have been terracing? could he have been terracing? could we have been terracing? could you have been terracing? could they have been terracing?

Interro-negative form

Simple form	V-ing form
could I not terrace? could you not terrace? could he not terrace? could we not terrace? could you not terrace? could they not terrace?	could I not be terracing? could you not be terracing? could he not be terracing? could we not be terracing? could you not be terracing? could they not be terracing?
Perfect	V-ing perfect
could I not have terraced? could you not have terraced? could he not have terraced? could we not have terraced? could you not have terraced? could they not have terraced?	could I not have been terracing? could you not have been terracing? could he not have been terracing? could we not have been terracing? could you not have been terracing? could they not have been terracing?