PAST CONCLUSIONS

My plants are dead. I ________________________________________________

• can't have given them enough water.

• couldn't give them enough water.

• must give them more water.

• can't not have given them enough water.

Which sentence is NOT a correct sentence?

• Erin can have missed the train.

• Erin must have missed the train.

• Erin may have missed the train.

Our son promised to clean his room, but it is still messy. He ___________________________________________

• can't clean it.

• cannot clean it.

• couldn't have cleaned it.

• couldn't to have cleaned it.

Paul's class starts at 8:30. It's 8:45 and he's not here yet. He _____________________________________________

• must be sick.

• must have been sick.

• must have missed the bus.

• might have missed the bus.

Which sentence is NOT grammatically correct?

• I may have left the form at home.

• He can’t have got lost!

• Joseph must have forget about the party

The twins have guilty expressions on their faces. They ________________________________________

• must do something naughty.

• must have done something naughty.

• might have done something naughty.

• might do something naughty.

My white shirt now has green streaks in it. I ____________________________________________

• can't wash it properly.

• can't have washed it properly.

• must to wash it properly.

• must not have not washed it properly.

Betty said she was hungry, but she didn't eat very much after all. She _______________________________________________

• couldn't have been hungry.

• can't like the food.

• couldn't have liked the food.

• couldn't like the food.