10-2 Modal Verbs of Probability - Past
Do #1: 5-10; #2: 5-15. We will do #3 in class tomorrow.
Practice Modals of Probability in the Past.
Note: This is past probability, so it is okay to say "couldn't + have + pp".
It is only in the present and future that it is wrong to say "couldn't + base verb".
10-3 So/Neither Do I
Read the notes.