conditionals

[bosun]

Are the following sentences correct?

If I recived a bad grade in high school, I felt like I was stupid.
If I recived a bad grade in high school, I tried to figure out what I did( or had done?) wrong.
If I recived a bad grade in high school, I could not use my computer.

[philo2009]

Typos aside (received), yes. They all appear to be past tense zero conditionals, although #3 could theoretically be interpreted as a second conditional.