could concave
Regelmä&szlig;iges Verb: concave - concaved- concaved

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could concave
you could concave
he could concave
we could concave
you could concave
they could concave 	I could be concaving
you could be concaving
he could be concaving
we could be concaving
you could be concaving
they could be concaving	I could have concaved
you could have concaved
he could have concaved
we could have concaved
you could have concaved
they could have concaved	I could have been concaving
you could have been concaving
he could have been concaving
we could have been concaving
you could have been concaving
they could have been concaving	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't concave
you couldn't concave
he couldn't concave
we couldn't concave
you couldn't concave
they couldn't concave 	I couldn't be concaving
you couldn't be concaving
he couldn't be concaving
we couldn't be concaving
you couldn't be concaving
they couldn't be concaving	I couldn't have concaved
you couldn't have concaved
he couldn't have concaved
we couldn't have concaved
you couldn't have concaved
they couldn't have concaved	I couldn't have been concaving
you couldn't have been concaving
he couldn't have been concaving
we couldn't have been concaving
you couldn't have been concaving
they couldn't have been concaving	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I concave?
could you concave?
could he concave?
could we concave?
could you concave?
could they concave? 	could I be concaving?
could you be concaving?
could he be concaving?
could we be concaving?
could you be concaving?
could they be concaving? 	could I have concaved?
could you have concaved?
could he have concaved?
could we have concaved?
could you have concaved?
could they have concaved? 	could I have been concaving?
could you have been concaving?
could he have been concaving?
could we have been concaving?
could you have been concaving?
could they have been concaving? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I concave?
couldn't you concave?
couldn't he concave?
couldn't we concave?
couldn't you concave?
couldn't they concave? 	couldn't I be concaving?
couldn't you be concaving?
couldn't he be concaving?
couldn't we be concaving?
couldn't you be concaving?
couldn't they be concaving? 	couldn't I have concaved?
couldn't you have concaved?
couldn't he have concaved?
couldn't we have concaved?
couldn't you have concaved?
couldn't they have concaved? 	couldn't I have been concaving?
couldn't you have been concaving?
couldn't he have been concaving?
couldn't we have been concaving?
couldn't you have been concaving?
couldn't they have been concaving?