Conjugación del verbo inglés
CAN ALERT

Verbo regular: alert - alerted - alerted

Afirmación

Forma simple	Forma con V-ing
I can alert you can alert he can alert we can alert you can alert they can alert	I can be alerting you can be alerting he can be alerting we can be alerting you can be alerting they can be alerting
Perfecto	Perfecto con V-ing
I can have alerted you can have alerted he can have alerted we can have alerted you can have alerted they can have alerted	I can have been alerting you can have been alerting he can have been alerting we can have been alerting you can have been alerting they can have been alerting

Negación

Forma simple	Forma con V-ing
I can't alert you can't alert he can't alert we can't alert you can't alert they can't alert	I can't be alerting you can't be alerting he can't be alerting we can't be alerting you can't be alerting they can't be alerting
Perfecto	Perfecto con V-ing
I can't have alerted you can't have alerted he can't have alerted we can't have alerted you can't have alerted they can't have alerted	I can't have been alerting you can't have been alerting he can't have been alerting we can't have been alerting you can't have been alerting they can't have been alerting

Forma interrogativa

Forma simple	Forma con V-ing
can I alert? can you alert? can he alert? can we alert? can you alert? can they alert?	can I be alerting? can you be alerting? can he be alerting? can we be alerting? can you be alerting? can they be alerting?
Perfecto	Perfecto con V-ing
can I have alerted? can you have alerted? can he have alerted? can we have alerted? can you have alerted? can they have alerted?	can I have been alerting? can you have been alerting? can he have been alerting? can we have been alerting? can you have been alerting? can they have been alerting?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I alert? can't you alert? can't he alert? can't we alert? can't you alert? can't they alert?	can't I be alerting? can't you be alerting? can't he be alerting? can't we be alerting? can't you be alerting? can't they be alerting?
Perfecto	Perfecto con V-ing
can't I have alerted? can't you have alerted? can't he have alerted? can't we have alerted? can't you have alerted? can't they have alerted?	can't I have been alerting? can't you have been alerting? can't he have been alerting? can't we have been alerting? can't you have been alerting? can't they have been alerting?