When i looked at my watch, i realized that i was too early.

When i looked at my watch, i realized I was playing for two hours.

When i looked at my watch, i realized that Clay had won the game.

When i looked at my watch, i realized that he had been going to home.

Tom was upset because he had been losing game.

Tom was upset, because he forgot his password.

Tom was upset, because his headphones were broken.

Tom was upset, because he forgot the money for the bus.