Coniugazione del verbo inglese
CAN BACK

Verbo regolare: back - backed - backed

Affermazione

Forma semplice	Forma con V-ing
I can back you can back she can back we can back you can back they can back	I can be backing you can be backing she can be backing we can be backing you can be backing they can be backing
Perfetto	Perfetto con V-ing
I can have backed you can have backed she can have backed we can have backed you can have backed they can have backed	I can have been backing you can have been backing she can have been backing we can have been backing you can have been backing they can have been backing

Negazione

Forma semplice	Forma con V-ing
I can't back you can't back she can't back we can't back you can't back they can't back	I can't be backing you can't be backing she can't be backing we can't be backing you can't be backing they can't be backing
Perfetto	Perfetto con V-ing
I can't have backed you can't have backed she can't have backed we can't have backed you can't have backed they can't have backed	I can't have been backing you can't have been backing she can't have been backing we can't have been backing you can't have been backing they can't have been backing

Forma interrogativa

Forma semplice	Forma con V-ing
can I back? can you back? can she back? can we back? can you back? can they back?	can I be backing? can you be backing? can she be backing? can we be backing? can you be backing? can they be backing?
Perfetto	Perfetto con V-ing
can I have backed? can you have backed? can she have backed? can we have backed? can you have backed? can they have backed?	can I have been backing? can you have been backing? can she have been backing? can we have been backing? can you have been backing? can they have been backing?

Forma interro-negativa

Forma semplice	Forma con V-ing
can't I back? can't you back? can't she back? can't we back? can't you back? can't they back?	can't I be backing? can't you be backing? can't she be backing? can't we be backing? can't you be backing? can't they be backing?
Perfetto	Perfetto con V-ing
can't I have backed? can't you have backed? can't she have backed? can't we have backed? can't you have backed? can't they have backed?	can't I have been backing? can't you have been backing? can't she have been backing? can't we have been backing? can't you have been backing? can't they have been backing?