Cambridge says: We don’t use unless for impossible conditions and gives example :
For example :
Which website is correct then? I just found another website that agrees with Cambridge.
If the government had not raised food prices, there would not have been so many protests. (The goverment raised food prices.)
Not:Unless the government had raised food prices…
I don’t know what we would have done if we hadn’t seen you. (We did see you.)
I But I found a website that shows all the conditionals with unless.Not:I don’t know what we would have done unless we’d seen you.
For example :
1- I wouldn't have phoned him unless you'd suggested it. (This sentence implies that "you" suggested it so this is an impossible condition and according to Cambridge , that sentence is wrong.)
Which website is correct then? I just found another website that agrees with Cambridge.