This is a post by Teresa Marques (University of Barcelona).

Imagine the following scenario: My husband and I go to the supermarket. When we get home, we bring the shopping bags from the car to the kitchen and as we start to put things away in the fridge, I notice that the eggs are missing. I wonder if we left them in the car. And so, I ask my husband for the car keys, to which he replies:
– The keys might be on the table.
He says ‘might’ because he is not completely certain if they are on the table, in his backpack, or in the pocket of his jacket.