`3. We will be in great trouble because we spent all the money.

- S + V + because + S + V 

- S + will + V

`->` Chúng ta sẽ gặp rắc rối lớn vì đã tiêu hết tiền

4. My father knows well about London because he has been there many times.

- S + V + because + S + V 

- DHNB: there many times `->` HTHT 

S + have/has + V-pp

`->` Cha tôi biết rõ về London vì ông đã đến đó nhiều lần.

5. My friend had studied Japanese before she moved to Japan.

- QKHT + before + QKĐ 

- QKHT: S + had + V-pp 

- QKĐ: S + V (ed/ cột 2)

`->` Bạn của tôi đã học tiếng Nhật trước khi cô ấy chuyển đến Nhật Bản. 

6. Peter had owned a big house for 10 years before he moved to the countryside.

- QKHT + before + QKĐ 

- QKHT: S + had + V-pp 

- QKĐ: S + V (ed/ cột 2)

`->` Peter đã sở hữu một ngôi nhà lớn trong 10 năm trước khi anh ấy chuyển đến vùng nông thôn.

`3.` We were in great troubles because we had spent all the money

`-` Thì QKHT: S + had + Vpp 

*Because + S + V, S + V 

`4.` My father knows well about London because he has been there many times

`-` Thì HTHT - "many times" là DHNB, cấu trúc: S + have/has + Vpp + ...

`5.` My friend had studied Japanese before she moved to Japan

`-` Thì QKHT - before là DHNB

`-` Cấu trúc: S + had + Vpp + before + S + Ved/Vc2 + ...

`6.` Peter owned a big house for 10 years before he moved to the countryside

`-` Thì QKHT - before là DHNB

`-` Cấu trúc: S + had + Vpp + before + S + Ved/Vc2 + ...