why do you need the "di"
Why is "you have tried to walk" wrong here?
Because "andare" just doesn't mean that (it's a false friend of the Spanish "andar").
Does anyone know why "you have attempted to go" is incorrect?
Your sentence is correct
Why is "tried" sometimes "tenato" and sometimes "provato?" How do you know which to use?
I can't see where this sentence would ever be used as a statement. If you tried, then you would know and wouldn't need someone to tell you. Now,as a question, "Did you try to go." would make sense.
I'm happy to accept it as another Duo-ism. It does however seem more likely than "The children do not write on the shark". :-)
It could easily be used as a statement. Person 1 accuses person 2 of not collecting the dry-cleaning. Person 2 explains that the car wouldn't start. Person 1 would accept the apology and finish her statement with these very words.
Why "di" before andare?
She says "de", not "di" andare!!!