I haven't stopped to eat sugar last year.

Which sentence is grammatically correct: 

If we wouldn't have electricity, we would use candles.

If we didn't have electricity, we would use candles.

 If we won't have electricity, we use candles.

If we haven't electricity, we use candles.

I'm more focused on saving money this month.

I have more focus on saving money this month.

I have more focused on saving money this month.

I'm have most focused on saving money this month.

I want to spend more time for my project.

If I don't have a job, I would go back to school.

If I haven't had a job, I would go back to school.

If I didn't have a job, I would go back to school.

If I don't have had a job, I would go back to school.

Identify the correct sentence: