$3.$ had/ would buy
$4.$ didn't learn/ would try
$5.$ would have/ lived
$6.$ needed/ wouldn't refuse
$7.$ used/ would be
$8.$ couldn't stand/ wouldn't tell
$9.$ visited/ wouldn't go
$10.$ forgot/ would remind
$===========$"
- Câu điều kiện loại $II$: If + S + Thì quá khứ đơn , S + would/ could/ might.
+ Nói về một sự việc không có thật, không thể xảy ra ở hiện tại.