could alert
Regelmä&szlig;iges Verb: alert - alerted- alerted

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could alert
you could alert
he could alert
we could alert
you could alert
they could alert 	I could be alerting
you could be alerting
he could be alerting
we could be alerting
you could be alerting
they could be alerting	I could have alerted
you could have alerted
he could have alerted
we could have alerted
you could have alerted
they could have alerted	I could have been alerting
you could have been alerting
he could have been alerting
we could have been alerting
you could have been alerting
they could have been alerting	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't alert
you couldn't alert
he couldn't alert
we couldn't alert
you couldn't alert
they couldn't alert 	I couldn't be alerting
you couldn't be alerting
he couldn't be alerting
we couldn't be alerting
you couldn't be alerting
they couldn't be alerting	I couldn't have alerted
you couldn't have alerted
he couldn't have alerted
we couldn't have alerted
you couldn't have alerted
they couldn't have alerted	I couldn't have been alerting
you couldn't have been alerting
he couldn't have been alerting
we couldn't have been alerting
you couldn't have been alerting
they couldn't have been alerting	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I alert?
could you alert?
could he alert?
could we alert?
could you alert?
could they alert? 	could I be alerting?
could you be alerting?
could he be alerting?
could we be alerting?
could you be alerting?
could they be alerting? 	could I have alerted?
could you have alerted?
could he have alerted?
could we have alerted?
could you have alerted?
could they have alerted? 	could I have been alerting?
could you have been alerting?
could he have been alerting?
could we have been alerting?
could you have been alerting?
could they have been alerting? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I alert?
couldn't you alert?
couldn't he alert?
couldn't we alert?
couldn't you alert?
couldn't they alert? 	couldn't I be alerting?
couldn't you be alerting?
couldn't he be alerting?
couldn't we be alerting?
couldn't you be alerting?
couldn't they be alerting? 	couldn't I have alerted?
couldn't you have alerted?
couldn't he have alerted?
couldn't we have alerted?
couldn't you have alerted?
couldn't they have alerted? 	couldn't I have been alerting?
couldn't you have been alerting?
couldn't he have been alerting?
couldn't we have been alerting?
couldn't you have been alerting?
couldn't they have been alerting?