37. The worker is clever enough to make fine things from wood.
S + be + adj + enough + to V
38. My father explained the subject more clearly than my brother.
So sánh hơn: S1 + be/V + adj/adv ngắn + er + than + S2
                                       + more + adj/adv dài + than + S2
39. I used to live on farm with my grandma. (có thể lược bỏ ten years ago)
used to + Vinf
40 . He spends all of his free time collecting stamps.1
S + spend + tiền/tgian + Ving

37. The worker is clever enough to make fine things from wood.
38. My father explained the subject was more clearly than my brother did.
39. I used to live on a farm with my grandma ten years ago.
40.  He spends all of his time collecting stamps.
Notes:
+ Enough...to: .... đủ.... để mà
S+ $tobe_{chia theo thì}$ + adj/adv + enough (for sb) + to V
S+ $tobe_{chia theo thì}$ + enough + N (for sb) + to V
+ explaination about (n) = explain (v) giải thích
+ used to do sth: đã từng làm j
+ ai đó dành bao nhiêu thời gian/ tiền để làm j
S+ spend( chia) + time/ money + doing sth 

= S+ take( chia)+ time/ money + to do sth