Stop saying: “My teacher gave me some good advices.”
Say instead: “My teacher gave me some good advice.” · A2 · Grammar
✗ Wrong
My teacher gave me some good advices.
✓ Correct
My teacher gave me some good advice.
Why?
Advice is uncountable in English, so it has no plural form. Use some advice, a lot of advice, or a piece of advice for one single item. Its verb is singular too: the advice is helpful, not are.
More examples
🎙️ REAL VOICES
The three correct examples below, in a real voice.
✗ She gave me two advices.
✓ She gave me two pieces of advice.
✗ I need your advices about my classes.
✓ I need your advice about my classes.
✗ His advices were very helpful.
✓ His advice was very helpful.
Advice never wears an s — count the pieces, not the advice.