Verbo regolare: authenticate - authenticated - authenticated
Affermazione
Forma semplice
I could authenticate you could authenticate he could authenticate we could authenticate you could authenticate they could authenticate
Forma con V-ing
I could be authenticating you could be authenticating he could be authenticating we could be authenticating you could be authenticating they could be authenticating
Perfetto
I could have authenticated you could have authenticated he could have authenticated we could have authenticated you could have authenticated they could have authenticated
Perfetto con V-ing
I could have been authenticating you could have been authenticating he could have been authenticating we could have been authenticating you could have been authenticating they could have been authenticating
Negazione
Forma semplice
I couldn't authenticate you couldn't authenticate he couldn't authenticate we couldn't authenticate you couldn't authenticate they couldn't authenticate
Forma con V-ing
I couldn't be authenticating you couldn't be authenticating he couldn't be authenticating we couldn't be authenticating you couldn't be authenticating they couldn't be authenticating
Perfetto
I couldn't have authenticated you couldn't have authenticated he couldn't have authenticated we couldn't have authenticated you couldn't have authenticated they couldn't have authenticated
Perfetto con V-ing
I couldn't have been authenticating you couldn't have been authenticating he couldn't have been authenticating we couldn't have been authenticating you couldn't have been authenticating they couldn't have been authenticating
Forma interrogativa
Forma semplice
could I authenticate? could you authenticate? could he authenticate? could we authenticate? could you authenticate? could they authenticate?
Forma con V-ing
could I be authenticating? could you be authenticating? could he be authenticating? could we be authenticating? could you be authenticating? could they be authenticating?
Perfetto
could I have authenticated? could you have authenticated? could he have authenticated? could we have authenticated? could you have authenticated? could they have authenticated?
Perfetto con V-ing
could I have been authenticating? could you have been authenticating? could he have been authenticating? could we have been authenticating? could you have been authenticating? could they have been authenticating?
Forma interro-negativa
Forma semplice
couldn't I authenticate? couldn't you authenticate? couldn't he authenticate? couldn't we authenticate? couldn't you authenticate? couldn't they authenticate?
Forma con V-ing
couldn't I be authenticating? couldn't you be authenticating? couldn't he be authenticating? couldn't we be authenticating? couldn't you be authenticating? couldn't they be authenticating?
Perfetto
couldn't I have authenticated? couldn't you have authenticated? couldn't he have authenticated? couldn't we have authenticated? couldn't you have authenticated? couldn't they have authenticated?
Perfetto con V-ing
couldn't I have been authenticating? couldn't you have been authenticating? couldn't he have been authenticating? couldn't we have been authenticating? couldn't you have been authenticating? couldn't they have been authenticating?