I could augur you could augur she could augur we could augur you could augur they could augur
V-ing form
I could be auguring you could be auguring she could be auguring we could be auguring you could be auguring they could be auguring
Perfect
I could have augured you could have augured she could have augured we could have augured you could have augured they could have augured
V-ing perfect
I could have been auguring you could have been auguring she could have been auguring we could have been auguring you could have been auguring they could have been auguring
Negation
Simple form
I could not augur you could not augur she could not augur we could not augur you could not augur they could not augur
V-ing form
I could not be auguring you could not be auguring she could not be auguring we could not be auguring you could not be auguring they could not be auguring
Perfect
I could not have augured you could not have augured she could not have augured we could not have augured you could not have augured they could not have augured
V-ing perfect
I could not have been auguring you could not have been auguring she could not have been auguring we could not have been auguring you could not have been auguring they could not have been auguring
Interrogative form
Simple form
could I augur? could you augur? could she augur? could we augur? could you augur? could they augur?
V-ing form
could I be auguring? could you be auguring? could she be auguring? could we be auguring? could you be auguring? could they be auguring?
Perfect
could I have augured? could you have augured? could she have augured? could we have augured? could you have augured? could they have augured?
V-ing perfect
could I have been auguring? could you have been auguring? could she have been auguring? could we have been auguring? could you have been auguring? could they have been auguring?
Interro-negative form
Simple form
could I not augur? could you not augur? could she not augur? could we not augur? could you not augur? could they not augur?
V-ing form
could I not be auguring? could you not be auguring? could she not be auguring? could we not be auguring? could you not be auguring? could they not be auguring?
Perfect
could I not have augured? could you not have augured? could she not have augured? could we not have augured? could you not have augured? could they not have augured?
V-ing perfect
could I not have been auguring? could you not have been auguring? could she not have been auguring? could we not have been auguring? could you not have been auguring? could they not have been auguring?