could clean
Regelmä&szlig;iges Verb: clean - cleaned- cleaned

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could clean
you could clean
he could clean
we could clean
you could clean
they could clean 	I could be cleaning
you could be cleaning
he could be cleaning
we could be cleaning
you could be cleaning
they could be cleaning	I could have cleaned
you could have cleaned
he could have cleaned
we could have cleaned
you could have cleaned
they could have cleaned	I could have been cleaning
you could have been cleaning
he could have been cleaning
we could have been cleaning
you could have been cleaning
they could have been cleaning	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't clean
you couldn't clean
he couldn't clean
we couldn't clean
you couldn't clean
they couldn't clean 	I couldn't be cleaning
you couldn't be cleaning
he couldn't be cleaning
we couldn't be cleaning
you couldn't be cleaning
they couldn't be cleaning	I couldn't have cleaned
you couldn't have cleaned
he couldn't have cleaned
we couldn't have cleaned
you couldn't have cleaned
they couldn't have cleaned	I couldn't have been cleaning
you couldn't have been cleaning
he couldn't have been cleaning
we couldn't have been cleaning
you couldn't have been cleaning
they couldn't have been cleaning	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I clean?
could you clean?
could he clean?
could we clean?
could you clean?
could they clean? 	could I be cleaning?
could you be cleaning?
could he be cleaning?
could we be cleaning?
could you be cleaning?
could they be cleaning? 	could I have cleaned?
could you have cleaned?
could he have cleaned?
could we have cleaned?
could you have cleaned?
could they have cleaned? 	could I have been cleaning?
could you have been cleaning?
could he have been cleaning?
could we have been cleaning?
could you have been cleaning?
could they have been cleaning? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I clean?
couldn't you clean?
couldn't he clean?
couldn't we clean?
couldn't you clean?
couldn't they clean? 	couldn't I be cleaning?
couldn't you be cleaning?
couldn't he be cleaning?
couldn't we be cleaning?
couldn't you be cleaning?
couldn't they be cleaning? 	couldn't I have cleaned?
couldn't you have cleaned?
couldn't he have cleaned?
couldn't we have cleaned?
couldn't you have cleaned?
couldn't they have cleaned? 	couldn't I have been cleaning?
couldn't you have been cleaning?
couldn't he have been cleaning?
couldn't we have been cleaning?
couldn't you have been cleaning?
couldn't they have been cleaning?