THIS IS THE FIRST TIME + S +HAVE/HAS+P2

3. This is the first time + S +have/has+P2: Lần đầu làm gì=> S +have/ has + never + P2+ before=> S+ have/ has not+ P2+ beforeVí dụ: This is the first time I have met him=> I have never met him before.=> I haven’t met him before.