JAMB - English Language (1978 - No. 18)

If my father had not arrived, I would have starved. This sentence means

My father did arrive and I didn't starve

I had to starve because my father didn't come

my father didn't arrive and I didn't starve

I should have starved but I didn't

I had starved before my father arrived

It means, the reason why he didn't starve is because his father had arrived.