could clop
Regular verb: clop - cloped- cloped

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could clop
you could clop
he could clop
we could clop
you could clop
they could clop 	I could be cloping
you could be cloping
he could be cloping
we could be cloping
you could be cloping
they could be cloping	I could have cloped
you could have cloped
he could have cloped
we could have cloped
you could have cloped
they could have cloped	I could have been cloping
you could have been cloping
he could have been cloping
we could have been cloping
you could have been cloping
they could have been cloping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't clop
you couldn't clop
he couldn't clop
we couldn't clop
you couldn't clop
they couldn't clop 	I couldn't be cloping
you couldn't be cloping
he couldn't be cloping
we couldn't be cloping
you couldn't be cloping
they couldn't be cloping	I couldn't have cloped
you couldn't have cloped
he couldn't have cloped
we couldn't have cloped
you couldn't have cloped
they couldn't have cloped	I couldn't have been cloping
you couldn't have been cloping
he couldn't have been cloping
we couldn't have been cloping
you couldn't have been cloping
they couldn't have been cloping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I clop?
could you clop?
could he clop?
could we clop?
could you clop?
could they clop? 	could I be cloping?
could you be cloping?
could he be cloping?
could we be cloping?
could you be cloping?
could they be cloping? 	could I have cloped?
could you have cloped?
could he have cloped?
could we have cloped?
could you have cloped?
could they have cloped? 	could I have been cloping?
could you have been cloping?
could he have been cloping?
could we have been cloping?
could you have been cloping?
could they have been cloping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I clop?
couldn't you clop?
couldn't he clop?
couldn't we clop?
couldn't you clop?
couldn't they clop? 	couldn't I be cloping?
couldn't you be cloping?
couldn't he be cloping?
couldn't we be cloping?
couldn't you be cloping?
couldn't they be cloping? 	couldn't I have cloped?
couldn't you have cloped?
couldn't he have cloped?
couldn't we have cloped?
couldn't you have cloped?
couldn't they have cloped? 	couldn't I have been cloping?
couldn't you have been cloping?
couldn't he have been cloping?
couldn't we have been cloping?
couldn't you have been cloping?
couldn't they have been cloping?