I could knead you could knead he could knead we could knead you could knead they could knead
V-ing form
I could be kneading you could be kneading he could be kneading we could be kneading you could be kneading they could be kneading
Perfect
I could have kneaded you could have kneaded he could have kneaded we could have kneaded you could have kneaded they could have kneaded
V-ing perfect
I could have been kneading you could have been kneading he could have been kneading we could have been kneading you could have been kneading they could have been kneading
Negation
Simple form
I could not knead you could not knead he could not knead we could not knead you could not knead they could not knead
V-ing form
I could not be kneading you could not be kneading he could not be kneading we could not be kneading you could not be kneading they could not be kneading
Perfect
I could not have kneaded you could not have kneaded he could not have kneaded we could not have kneaded you could not have kneaded they could not have kneaded
V-ing perfect
I could not have been kneading you could not have been kneading he could not have been kneading we could not have been kneading you could not have been kneading they could not have been kneading
Interrogative form
Simple form
could I knead? could you knead? could he knead? could we knead? could you knead? could they knead?
V-ing form
could I be kneading? could you be kneading? could he be kneading? could we be kneading? could you be kneading? could they be kneading?
Perfect
could I have kneaded? could you have kneaded? could he have kneaded? could we have kneaded? could you have kneaded? could they have kneaded?
V-ing perfect
could I have been kneading? could you have been kneading? could he have been kneading? could we have been kneading? could you have been kneading? could they have been kneading?
Interro-negative form
Simple form
could I not knead? could you not knead? could he not knead? could we not knead? could you not knead? could they not knead?
V-ing form
could I not be kneading? could you not be kneading? could he not be kneading? could we not be kneading? could you not be kneading? could they not be kneading?
Perfect
could I not have kneaded? could you not have kneaded? could he not have kneaded? could we not have kneaded? could you not have kneaded? could they not have kneaded?
V-ing perfect
could I not have been kneading? could you not have been kneading? could he not have been kneading? could we not have been kneading? could you not have been kneading? could they not have been kneading?