1. If we had asked for direction earlier, we would reach Sally's house now.
If S had VPII, S would Vnt.
2. If he weren't an only child, his parents wouldn't have spoiled him.
If S weren't ..., S would(not) have VPII Vnt
3. If Bob had learnt Chinese in high school, he would have many job opportunities
If S had VPII, S would Vnt
4. If I were rich, I would have bought that house last month.