Rules for adding '-ed' and '-ing'

Do you know the rules for adding '-ed' or '-ing' to a verb?

1. If the verb is 3 letters and ends in a vowel + consonant, we always double the last consonant.

Example: hop > hopping, hopped

The exception to this is if the last consonant is w, x, y or z when we just add '-ed' or '-ing'.

Example: mow > mowing, mowed

2. If the verb ends in 'e' we drop the 'e' and add the '-ed' or '-ing'.

Example: hope > hoped, hoping

3. If the verb ends in consonant + y we change the '-y' to '-i' when we add '-ed'

4. If the verb ends in consonant + y we can just add '-ing'

Example: reply > replied, replying

5. If the verb ends in a double vowel and consonant we just add '-ed' or '-ing'.

Example: look > looked, looking

6. If the verb ends in a double consonant we just add '-ed' or '-ing'.

Example : park > parked, parking

7. If the verb is a two syllable and the stress is on the first syllable we just add '-ed' or '-ing'.

Example: visit > visited, visiting

8. If the verb is a two syllable and the stress is on the second syllable we double the last consonant and we add '-ed' or '-ing'.

Example: admit > admitted, admitting

I hope we can use these rules when we need.