Thomas Edison invented the electric bulb. →The electric bulb She is too old so she can’t apply for the job. →If I haven't enjoyed myself so much for years. →It is

1. Thomas Edison invented the electric bulb.

→The electric bulb was invented by Thomas Edison.

Bị động thì quá khứ đơn: S+was/were+P.P (V_ed/V_cột3)

2. She is too old so she can’t apply for the job.

→If she were not old, she could apply for the job.

Câu điều kiện loại $II$:

If+S+V_Quá khứ đơn hoặc be (were), S+could/would+V_nguyên thể            

3. I haven't enjoyed myself so much for years.

→It is many years since I last enjoyed myself.

S+has/have+P.P+for+khoảng thời gian

->It is+time+since+S+last+V_quá khứ đơn...