b) What are the spelling rules for adding -ed to the regular verbs in the Past Simple? Look at the list you made in Ex. 4a and say.

1. For most verbs, add -ed (e.g., worked, liked).

2. If a verb ends in 'e', just add -d (e.g., close -> closed).

3. If a verb ends in a consonant + y, change y to i and add -ed (e.g., try -> tried).