Wouldn't on y va also be translated as let's go?
The lesson is about using y in affirmative commands. On y va is not an affirmative command in the grammatic sense.
In my experience "allez-y" and "va-y" would mean "go" (there) -- in the impératif mood.
But "Are we going" --> on y va ? --> "let's go" or allons y (perhaps some element of impatience)
Hope this helps.
Sign in to submit your answer
Don't have an account yet? Join today
Test your French to the CEFR standard