I didn’t ask for help, and I made a mistake.
If I had asked for help, I wouldn’t have made that mistake.
I didn’t practice enough, and I lost the match.
If I had practiced more, I would have won the match.
I ate too much candy, and I felt sick.
If I hadn’t eaten so much candy, I wouldn’t have felt sick.
I forgot to bring my wallet, so I couldn’t buy lunch.
If I had brought my wallet, I could have bought lunch.
I didn’t apply for the job, and now it’s too late.
If I had applied, I would have gotten the job.
I missed the train, so I was late to the meeting.
If I had left earlier, I would have caught the train.
I didn’t study for the exam, and I failed.
If I had studied, I would have passed the exam.
I didn’t join the club, so I didn’t meet new friends.
If I had joined the club, I would have met more people.
I didn’t listen to the teacher, so I didn’t understand.
If I had listened, I would have understood.
I was late to the concert, so I missed the opening song.
If I had arrived on time, I would have heard the opening song.
I stayed up all night, so I was really tired in class.
If I had gone to bed earlier, I would have felt better in class.
I didn’t take notes during the lecture, and I couldn’t study well.
If I had taken notes, I could have studied better.
I didn’t save my file, and my computer crashed.
If I had saved my file, I wouldn’t have lost my work.
I didn’t check the weather, and I got wet in the rain.
If I had checked the weather, I could have brought an umbrella.
I didn’t bring my camera, so I couldn’t take photos.
If I had brought my camera, I could have taken photos.