I don't think it's grammatical. I'm not sure about British English, but I've never heard this construction in American English.I accompanied my friend to shopping" Is not it grammatical?
It is.Thank you owlman5, but I thought, "shopping" is an activities of buying something.
This sentence is normal.I will go shopping with you later.
This sentence is normal.We will go shopping tomorrow.
This sentence is possible but unusual. I rarely hear "to shop" rather than "shopping" in this type of sentence: I will go shopping tomorrow. I will go to shop tomorrow. (unusual).We will go to shop tomorrow.
This sentence is not normal.We will go to shopping tomorrow
I can only tell you that "I will accompany you to shopping" is not normal in American English. Grammar rules and idiomatic phrases are really arbitrary. I'm not sure why English-speakers in the U.S. don't use this structure, but I've never heard anybody use "to shopping" after "accompany" in the U.S.Why Does "to shopping" is not grammatical? would you clarify?