could knead
Regular verb: knead - kneaded- kneaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could knead
you could knead
he could knead
we could knead
you could knead
they could knead 	I could be kneading
you could be kneading
he could be kneading
we could be kneading
you could be kneading
they could be kneading	I could have kneaded
you could have kneaded
he could have kneaded
we could have kneaded
you could have kneaded
they could have kneaded	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 	V-ing form 	Perfect 	V-ing perfect 	
I could not knead
you could not knead
he could not knead
we could not knead
you could not knead
they could not knead 	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	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	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 	V-ing form 	Perfect 	V-ing perfect 	
could I knead?
could you knead?
could he knead?
could we knead?
could you knead?
could they knead? 	could I be kneading?
could you be kneading?
could he be kneading?
could we be kneading?
could you be kneading?
could they be kneading? 	could I have kneaded?
could you have kneaded?
could he have kneaded?
could we have kneaded?
could you have kneaded?
could they have kneaded? 	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 	V-ing form 	Perfect 	V-ing perfect 	
could I not knead?
could you not knead?
could he not knead?
could we not knead?
could you not knead?
could they not knead? 	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? 	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? 	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?