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