could trill
Regelmä&szlig;iges Verb: trill - trilled- trilled

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could trill
you could trill
he could trill
we could trill
you could trill
they could trill 	I could be trilling
you could be trilling
he could be trilling
we could be trilling
you could be trilling
they could be trilling	I could have trilled
you could have trilled
he could have trilled
we could have trilled
you could have trilled
they could have trilled	I could have been trilling
you could have been trilling
he could have been trilling
we could have been trilling
you could have been trilling
they could have been trilling	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could not trill
you could not trill
he could not trill
we could not trill
you could not trill
they could not trill 	I could not be trilling
you could not be trilling
he could not be trilling
we could not be trilling
you could not be trilling
they could not be trilling	I could not have trilled
you could not have trilled
he could not have trilled
we could not have trilled
you could not have trilled
they could not have trilled	I could not have been trilling
you could not have been trilling
he could not have been trilling
we could not have been trilling
you could not have been trilling
they could not have been trilling	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I trill?
could you trill?
could he trill?
could we trill?
could you trill?
could they trill? 	could I be trilling?
could you be trilling?
could he be trilling?
could we be trilling?
could you be trilling?
could they be trilling? 	could I have trilled?
could you have trilled?
could he have trilled?
could we have trilled?
could you have trilled?
could they have trilled? 	could I have been trilling?
could you have been trilling?
could he have been trilling?
could we have been trilling?
could you have been trilling?
could they have been trilling? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I not trill?
could you not trill?
could he not trill?
could we not trill?
could you not trill?
could they not trill? 	could I not be trilling?
could you not be trilling?
could he not be trilling?
could we not be trilling?
could you not be trilling?
could they not be trilling? 	could I not have trilled?
could you not have trilled?
could he not have trilled?
could we not have trilled?
could you not have trilled?
could they not have trilled? 	could I not have been trilling?
could you not have been trilling?
could he not have been trilling?
could we not have been trilling?
could you not have been trilling?
could they not have been trilling?