I could earmark you could earmark she could earmark we could earmark you could earmark they could earmark
V-ing form
I could be earmarking you could be earmarking she could be earmarking we could be earmarking you could be earmarking they could be earmarking
Perfect
I could have earmarked you could have earmarked she could have earmarked we could have earmarked you could have earmarked they could have earmarked
V-ing perfect
I could have been earmarking you could have been earmarking she could have been earmarking we could have been earmarking you could have been earmarking they could have been earmarking
Negation
Simple form
I could not earmark you could not earmark she could not earmark we could not earmark you could not earmark they could not earmark
V-ing form
I could not be earmarking you could not be earmarking she could not be earmarking we could not be earmarking you could not be earmarking they could not be earmarking
Perfect
I could not have earmarked you could not have earmarked she could not have earmarked we could not have earmarked you could not have earmarked they could not have earmarked
V-ing perfect
I could not have been earmarking you could not have been earmarking she could not have been earmarking we could not have been earmarking you could not have been earmarking they could not have been earmarking
Interrogative form
Simple form
could I earmark? could you earmark? could she earmark? could we earmark? could you earmark? could they earmark?
V-ing form
could I be earmarking? could you be earmarking? could she be earmarking? could we be earmarking? could you be earmarking? could they be earmarking?
Perfect
could I have earmarked? could you have earmarked? could she have earmarked? could we have earmarked? could you have earmarked? could they have earmarked?
V-ing perfect
could I have been earmarking? could you have been earmarking? could she have been earmarking? could we have been earmarking? could you have been earmarking? could they have been earmarking?
Interro-negative form
Simple form
could I not earmark? could you not earmark? could she not earmark? could we not earmark? could you not earmark? could they not earmark?
V-ing form
could I not be earmarking? could you not be earmarking? could she not be earmarking? could we not be earmarking? could you not be earmarking? could they not be earmarking?
Perfect
could I not have earmarked? could you not have earmarked? could she not have earmarked? could we not have earmarked? could you not have earmarked? could they not have earmarked?
V-ing perfect
could I not have been earmarking? could you not have been earmarking? could she not have been earmarking? could we not have been earmarking? could you not have been earmarking? could they not have been earmarking?