I’m at the airport, ready to catch my flight, but I can’t find my passport.
I must have left it at home.
It was my best friend’s birthday, but I didn’t call him/her.
I should have called her/him.
I’m running out of battery on my phone, but I don’t have a charger with me.
I should have brought the charger with me. /I should have charged it last night
My friend said we would meet at 10am. It´s 10:30 and he hasn´t arrived yet.
He must have had some kind of problem./ He must have forgotten
Sarah looks exhausted today. Speculate about the reason.
Sarah must/may have worked late into the night
Mark is not at the party. It´s weird! He never misses parties.
He must have known about the party. He can´t have forgotten.
Emily has a stomachache after eating street food. Share your opinion.
Emily shouldn't have eaten street food
Explain why Peter missed the plane this morning.
Peter could have missed the plane because of (the heavy traffic)
Explain why the team lost the game despite being the favorites.
The team should have practiced more
