Let’s go through each sentence one by one.
We are told to add “ed” to the verb in parentheses — but if the verb ends with a single consonant after a single vowel (like “stop”, “skip”, “grin”), we double that consonant before adding “ed”.
Here’s the rule again simply:
→ If the verb is short (one syllable), ends with one vowel + one consonant → double the last letter, then add “ed”.
Now let’s solve each:
1.
slam → slam ends with m (consonant) after a (vowel) → double m → slammed
2.
skip → skip ends with p after i → double p → skipped
3.
grin → grin ends with n after i → double n → grinned
4.
hug → hug ends with g after u → double g → hugged
5.
rip → rip ends with p after i → double p → ripped
6.
plan → plan ends with n after a → double n → planned
7.
stop → stop ends with p after o → double p → stopped
8.
pop → pop ends with p after o → double p → popped
9.
tip → tip ends with p after i → double p → tipped
10.
flap → flap ends with p after a → double p → flapped
All of these follow the “double the consonant” rule because they’re all one-syllable words ending in vowel + consonant.
Final Answer:
1. slammed
2. skipped
3. grinned
4. hugged
5. ripped
6. planned
7. stopped
8. popped
9. tipped
10. flapped
Parent Tip: Review the logic above to help your child master the concept of past tense ed worksheet.