I could crosshatch you could crosshatch he could crosshatch we could crosshatch you could crosshatch they could crosshatch
V-ing form
I could be crosshatching you could be crosshatching he could be crosshatching we could be crosshatching you could be crosshatching they could be crosshatching
Perfect
I could have crosshatched you could have crosshatched he could have crosshatched we could have crosshatched you could have crosshatched they could have crosshatched
V-ing perfect
I could have been crosshatching you could have been crosshatching he could have been crosshatching we could have been crosshatching you could have been crosshatching they could have been crosshatching
Negation
Simple form
I couldn't crosshatch you couldn't crosshatch he couldn't crosshatch we couldn't crosshatch you couldn't crosshatch they couldn't crosshatch
V-ing form
I couldn't be crosshatching you couldn't be crosshatching he couldn't be crosshatching we couldn't be crosshatching you couldn't be crosshatching they couldn't be crosshatching
Perfect
I couldn't have crosshatched you couldn't have crosshatched he couldn't have crosshatched we couldn't have crosshatched you couldn't have crosshatched they couldn't have crosshatched
V-ing perfect
I couldn't have been crosshatching you couldn't have been crosshatching he couldn't have been crosshatching we couldn't have been crosshatching you couldn't have been crosshatching they couldn't have been crosshatching
Interrogative form
Simple form
could I crosshatch? could you crosshatch? could he crosshatch? could we crosshatch? could you crosshatch? could they crosshatch?
V-ing form
could I be crosshatching? could you be crosshatching? could he be crosshatching? could we be crosshatching? could you be crosshatching? could they be crosshatching?
Perfect
could I have crosshatched? could you have crosshatched? could he have crosshatched? could we have crosshatched? could you have crosshatched? could they have crosshatched?
V-ing perfect
could I have been crosshatching? could you have been crosshatching? could he have been crosshatching? could we have been crosshatching? could you have been crosshatching? could they have been crosshatching?
Interro-negative form
Simple form
couldn't I crosshatch? couldn't you crosshatch? couldn't he crosshatch? couldn't we crosshatch? couldn't you crosshatch? couldn't they crosshatch?
V-ing form
couldn't I be crosshatching? couldn't you be crosshatching? couldn't he be crosshatching? couldn't we be crosshatching? couldn't you be crosshatching? couldn't they be crosshatching?
Perfect
couldn't I have crosshatched? couldn't you have crosshatched? couldn't he have crosshatched? couldn't we have crosshatched? couldn't you have crosshatched? couldn't they have crosshatched?
V-ing perfect
couldn't I have been crosshatching? couldn't you have been crosshatching? couldn't he have been crosshatching? couldn't we have been crosshatching? couldn't you have been crosshatching? couldn't they have been crosshatching?