English verb conjugation
COULD BASTE

Regular verb: baste - basted - basted

Affirmation

Simple form	V-ing form
I could baste you could baste he could baste we could baste you could baste they could baste	I could be basting you could be basting he could be basting we could be basting you could be basting they could be basting
Perfect	V-ing perfect
I could have basted you could have basted he could have basted we could have basted you could have basted they could have basted	I could have been basting you could have been basting he could have been basting we could have been basting you could have been basting they could have been basting

Negation

Simple form	V-ing form
I could not baste you could not baste he could not baste we could not baste you could not baste they could not baste	I could not be basting you could not be basting he could not be basting we could not be basting you could not be basting they could not be basting
Perfect	V-ing perfect
I could not have basted you could not have basted he could not have basted we could not have basted you could not have basted they could not have basted	I could not have been basting you could not have been basting he could not have been basting we could not have been basting you could not have been basting they could not have been basting

Interrogative form

Simple form	V-ing form
could I baste? could you baste? could he baste? could we baste? could you baste? could they baste?	could I be basting? could you be basting? could he be basting? could we be basting? could you be basting? could they be basting?
Perfect	V-ing perfect
could I have basted? could you have basted? could he have basted? could we have basted? could you have basted? could they have basted?	could I have been basting? could you have been basting? could he have been basting? could we have been basting? could you have been basting? could they have been basting?

Interro-negative form

Simple form	V-ing form
could I not baste? could you not baste? could he not baste? could we not baste? could you not baste? could they not baste?	could I not be basting? could you not be basting? could he not be basting? could we not be basting? could you not be basting? could they not be basting?
Perfect	V-ing perfect
could I not have basted? could you not have basted? could he not have basted? could we not have basted? could you not have basted? could they not have basted?	could I not have been basting? could you not have been basting? could he not have been basting? could we not have been basting? could you not have been basting? could they not have been basting?