Inflectional Endings worksheet for practicing adding -ing and -ed to verbs.

Problem Explanation:

The task involves adding inflectional endings to verbs. Specifically, you need to add the ending -ing to indicate the present participle (action happening now) and the ending -ed to indicate the past tense (action that has already happened). The worksheet provides an example:

- Verb: jumps
- Happening now: jumping
- Happened in the past: jumped

You are required to do the same for the given list of verbs.

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Solution:

#### Step-by-Step Process:
1. Identify the Verb: Start with the base verb provided.
2. Add -ing: To form the present participle, add -ing to the verb.
- If the verb ends in a single consonant preceded by a short vowel and followed by a single consonant (e.g., "walk"), double the final consonant before adding -ing.
3. Add -ed: To form the past tense, add -ed to the verb.
- If the verb ends in a single consonant preceded by a short vowel and followed by a single consonant (e.g., "walk"), double the final consonant before adding -ed.
- If the verb ends in -y, change the -y to -i before adding -ed (e.g., "help" → "helped").

#### Applying the Rules:

| Verb | Happening Now (-ing) | Happened in the Past (-ed) |
|----------|---------------------------|-------------------------------|
| 1. walk | walking | walked |
| 2. spill | spilling | spilled |
| 3. help | helping | helped |
| 4. look | looking | looked |
| 5. plant | planting | planted |
| 6. lock | locking | locked |
| 7. jump | jumping | jumped |
| 8. start | starting | started |
| 9. fix | fixing | fixed |
| 10. yell | yelling | yelled |

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Final Answer:

\[
\boxed{
\begin{array}{|c|c|c|}
\hline
\textbf{Verb} & \textbf{Happening Now (-ing)} & \textbf{Happened in the Past (-ed)} \\
\hline
1. \text{walk} & \text{walking} & \text{walked} \\
2. \text{spill} & \text{spilling} & \text{spilled} \\
3. \text{help} & \text{helping} & \text{helped} \\
4. \text{look} & \text{looking} & \text{looked} \\
5. \text{plant} & \text{planting} & \text{planted} \\
6. \text{lock} & \text{locking} & \text{locked} \\
7. \text{jump} & \text{jumping} & \text{jumped} \\
8. \text{start} & \text{starting} & \text{started} \\
9. \text{fix} & \text{fixing} & \text{fixed} \\
10. \text{yell} & \text{yelling} & \text{yelled} \\
\hline
\end{array}
}
\]

This completes the worksheet. Each verb has been transformed into its present participle and past tense forms according to the rules of English grammar.