English verb conjugation
COULD TRELLIS

Regular verb: trellis - trellised - trellised

Affirmation

Simple form	V-ing form
I could trellis you could trellis she could trellis we could trellis you could trellis they could trellis	I could be trellising you could be trellising she could be trellising we could be trellising you could be trellising they could be trellising
Perfect	V-ing perfect
I could have trellised you could have trellised she could have trellised we could have trellised you could have trellised they could have trellised	I could have been trellising you could have been trellising she could have been trellising we could have been trellising you could have been trellising they could have been trellising

Negation

Simple form	V-ing form
I could not trellis you could not trellis she could not trellis we could not trellis you could not trellis they could not trellis	I could not be trellising you could not be trellising she could not be trellising we could not be trellising you could not be trellising they could not be trellising
Perfect	V-ing perfect
I could not have trellised you could not have trellised she could not have trellised we could not have trellised you could not have trellised they could not have trellised	I could not have been trellising you could not have been trellising she could not have been trellising we could not have been trellising you could not have been trellising they could not have been trellising

Interrogative form

Simple form	V-ing form
could I trellis? could you trellis? could she trellis? could we trellis? could you trellis? could they trellis?	could I be trellising? could you be trellising? could she be trellising? could we be trellising? could you be trellising? could they be trellising?
Perfect	V-ing perfect
could I have trellised? could you have trellised? could she have trellised? could we have trellised? could you have trellised? could they have trellised?	could I have been trellising? could you have been trellising? could she have been trellising? could we have been trellising? could you have been trellising? could they have been trellising?

Interro-negative form

Simple form	V-ing form
could I not trellis? could you not trellis? could she not trellis? could we not trellis? could you not trellis? could they not trellis?	could I not be trellising? could you not be trellising? could she not be trellising? could we not be trellising? could you not be trellising? could they not be trellising?
Perfect	V-ing perfect
could I not have trellised? could you not have trellised? could she not have trellised? could we not have trellised? could you not have trellised? could they not have trellised?	could I not have been trellising? could you not have been trellising? could she not have been trellising? could we not have been trellising? could you not have been trellising? could they not have been trellising?