could mask
Regelmä&szlig;iges Verb: mask - masked- masked

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could mask
you could mask
he could mask
we could mask
you could mask
they could mask 	I could be masking
you could be masking
he could be masking
we could be masking
you could be masking
they could be masking	I could have masked
you could have masked
he could have masked
we could have masked
you could have masked
they could have masked	I could have been masking
you could have been masking
he could have been masking
we could have been masking
you could have been masking
they could have been masking	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not mask
you could not mask
he could not mask
we could not mask
you could not mask
they could not mask 	I could not be masking
you could not be masking
he could not be masking
we could not be masking
you could not be masking
they could not be masking	I could not have masked
you could not have masked
he could not have masked
we could not have masked
you could not have masked
they could not have masked	I could not have been masking
you could not have been masking
he could not have been masking
we could not have been masking
you could not have been masking
they could not have been masking	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I mask?
could you mask?
could he mask?
could we mask?
could you mask?
could they mask? 	could I be masking?
could you be masking?
could he be masking?
could we be masking?
could you be masking?
could they be masking? 	could I have masked?
could you have masked?
could he have masked?
could we have masked?
could you have masked?
could they have masked? 	could I have been masking?
could you have been masking?
could he have been masking?
could we have been masking?
could you have been masking?
could they have been masking? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not mask?
could you not mask?
could he not mask?
could we not mask?
could you not mask?
could they not mask? 	could I not be masking?
could you not be masking?
could he not be masking?
could we not be masking?
could you not be masking?
could they not be masking? 	could I not have masked?
could you not have masked?
could he not have masked?
could we not have masked?
could you not have masked?
could they not have masked? 	could I not have been masking?
could you not have been masking?
could he not have been masking?
could we not have been masking?
could you not have been masking?
could they not have been masking?