Giải thích giúp em bài này với ạ

=>

1. He hasn't called me for a long time.

-> chuyển QKĐ sang HTHT, S have/has not V3/ed

2. How long ago did he get the job?

-> how long ago did S V

3. If I were you, I would book a table in advance.

-> câu đk loại 2

4. I would rather not tell them the secret.

-> would rather V

5. Were I to improve my English speaking skill, I would easily get that job.

-> đảo ngữ câu đk loại 2

$1.$ He hasn't called me for a long time.

$⇒$ Thì HTHT: S + have/has + not + V3/ed + for + khoảng thời gian

$2.$ How long ago did he get the job?

$⇒$ How long ago + did + S + V(bare)?

$3.$ If I were you, I would book a table in advance.

$⇒$ Câu điều kiện loại 2: If + Thì QKĐ (Với động từ tobe: S + was/were + O), S + would/could/might/... (+ not) + V(bare)

$4.$ I would rather not tell them the secret.

$⇒$ would rather (+ not) + V(bare): thà làm một cái gì đó

$5.$ Were I to improve my English speaking skill, I would easily get that job.

$⇒$ Đảo ngữ câu điều kiện loại 2: Were + S (+ not) + N/Adj/to V, S + would/could/might/... (+ not) + V(bare)