2. put-put?

3. Swimming-swimming?

4. Start-Start?

5. Get-get?

6. Forget-forget?

7. Hit-hit, hit, hit?

8. Spit. Spit?

9. Hiccup-Hiccup?

10. Run-run?

1 1. Sit down?

Split. Split?

13. Shut down-Shut down?

14. Win-win?

Shopping?

Stop, stop, stop?

17. drop down?

18. Dig-dig?

19. Plan-plan?

Like it better. Like it better?

Extended data:

Is it regular for verb participles to have double suffixes and ing?

Verbs ending in vowels and consonants.

(1) If the last syllable of the verb is a stressed closed syllable, you need to repeat the last letter: run-run, stop-stop, hop—-jump, plan-plan, star-star, control-control.

But the consonant X is an exception, and there is no need to repeat it (X actually plays the role of two consonants): tax—-taxation, relax—-relaxation.

(2) If the last syllable of the verb is a sub-stressed syllable, the last letter is sometimes repeated: kidnapping-kidnapping or kidnapping, program-programming or programming.

(3) If the last syllable of the verb is unstressed, most of the last letters need not be repeated: open-open, offer—-provide, audit-audit.