could knead
Regular verb: knead - kneaded- kneaded

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