Example:

My parents are so strict.

If only my parents weren't so strict.

1 Mum makes such a fuss if I'm slightly late.

If only Mum didn't make such a fuss when I'm slightly late.

2 Unfortunately, I don't have a photographic memory.

If only I had a photographic memory.

3 My girlfriend hasn't called me yet today.

I wish my girlfriend had called me before bedtime.

4 There is no snow in the mountains, so we can't go skiing.

If only there were snow in the mountains, we could go skiing.

5 I don't want to be here. I'd rather be anywhere else.

I wish I were not here. I'd rather be anywhere else instead.

6 Kerry taps her pen on the desk. It's annoying.

I wish Kerry did not tap her pen on the desk. It's annoying.