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 couldn't earmark you couldn't earmark she couldn't earmark we couldn't earmark you couldn't earmark they couldn't earmark
V-ing form
I couldn't be earmarking you couldn't be earmarking she couldn't be earmarking we couldn't be earmarking you couldn't be earmarking they couldn't be earmarking
Perfect
I couldn't have earmarked you couldn't have earmarked she couldn't have earmarked we couldn't have earmarked you couldn't have earmarked they couldn't have earmarked
V-ing perfect
I couldn't have been earmarking you couldn't have been earmarking she couldn't have been earmarking we couldn't have been earmarking you couldn't have been earmarking they couldn't 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
couldn't I earmark? couldn't you earmark? couldn't she earmark? couldn't we earmark? couldn't you earmark? couldn't they earmark?
V-ing form
couldn't I be earmarking? couldn't you be earmarking? couldn't she be earmarking? couldn't we be earmarking? couldn't you be earmarking? couldn't they be earmarking?
Perfect
couldn't I have earmarked? couldn't you have earmarked? couldn't she have earmarked? couldn't we have earmarked? couldn't you have earmarked? couldn't they have earmarked?
V-ing perfect
couldn't I have been earmarking? couldn't you have been earmarking? couldn't she have been earmarking? couldn't we have been earmarking? couldn't you have been earmarking? couldn't they have been earmarking?