1. If I didn't forget the ticket, I wouldn't have to go home.

(conditional type 2: S1+V(past simple)+....., S2 +would/could/...+ V(inf))

2. If you didn't step on my pen, you wouldn't have to apologize me. (conditional type 2)

3. If he studied harder, he would pass the exam. (conditional type 2)

4. Because he drives carefully, his mother won't worry very much.

( Because+ clause......)

5. If I had her phone number, I could give it to you. (conditional type 2)

$\text{~ Chúc bạn học tốt ~}$

$\text{~ Nếu được thì cho mk trả lời hay nhất nha! ~}$

1 If I didn't forget the ticket,I wouldn't have to go to home

Câu ở trên ở dạng HTĐ thì khi viết về cấu ĐK thường viết về câu ĐK loại 2 ở dạng phủ định hoặc ngược lại

Cấu trúc :

If + S + V2/ Ved, S +would/ Could/ Should…+ V(Điều kiện không có thật ở hiện tại)

2 If you didn't step on my pen,you wouldn,heve to apologize to me 

3 If he studied harder , he would pass the exam

4 If he didn't drives carefully,his mother wouldn't worrry very much

5 If i hà her phone number,I could give it to you  

Tuy nhiên làm mấy câu này bạn phải dịch đc nghĩa các câu để đưa về dạng điều kiện phù hợp