why is một người y tá wrong?
" Người y tá" is not wrong but "người" is just not necessary in that phrase
Why has trở thành "to become" suddenly required a prefix để
Để means, "for the purpose of". Think of it as, "I don't know what to do in order to become a nurse."
Is there a difference between, "biết làm sao để (verb)" and "biết (verb)"?