How do you form the past tense of verbs ending in 'p' or 'b'?

To form the past tense of verbs ending in 'p' or 'b', we need to follow a specific rule. The rule states that when a verb ends in a voiceless sound, such as 'p', 'k', 's', 'sh', 'ch', or 'f', the past tense is formed by adding '-ed' to the base form of the verb. However, when a verb ends in a voiced sound, such as 'b', 'g', 'z', 'v', 'j', or 'm', the past tense is formed by adding '-ed' as well, but with the addition of a final '-e' before the '-ed' ending.

Applying this rule to verbs ending in 'p' or 'b', we can see that the past tense is formed by adding '-ed' to the base form of the verb. For example:

1. Verb: help
Past Tense: helped

2. Verb: grab
Past Tense: grabbed

3. Verb: stop
Past Tense: stopped

4. Verb: rob
Past Tense: robbed

5. Verb: drop
Past Tense: dropped

6. Verb: sob
Past Tense: sobbed

7. Verb: develop
Past Tense: developed

8. Verb: probe
Past Tense: probed

9. Verb: absorb
Past Tense: absorbed

10. Verb: disturb
Past Tense: disturbed

In summary, to form the past tense of verbs ending in 'p' or 'b', we add '-ed' to the base form of the verb. However, if the verb ends in a voiced sound, we add a final '-e' before the '-ed' ending.