Educational worksheet for practicing past tense verb formation by adding -ed.

Problem Overview:

The task involves converting the given verbs into their past tense forms. The instructions provide two rules for forming the past tense:

1. Add -ed to a verb to make it past tense.
- Example: "open" → "opened"

2. If a verb ends in a silent 'e', just add -d to make it past tense.
- Example: "close" → "closed"

Solution:

We will apply these rules to each verb listed in the worksheet.

---

#### 1. want
- Rule: Add -ed.
- Past tense: wanted

#### 2. finish
- Rule: Add -ed.
- Past tense: finished

#### 3. wash
- Rule: Add -ed.
- Past tense: washed

#### 4. smile
- Rule: Add -ed.
- Past tense: smiled

#### 5. arrive
- Rule: Add -ed.
- Past tense: arrived

#### 6. cook
- Rule: Add -ed.
- Past tense: cooked

#### 7. bake
- Rule: Add -ed.
- Past tense: baked

#### 8. call
- Rule: Add -ed.
- Past tense: called

#### 9. visit
- Rule: Add -ed.
- Past tense: visited

#### 10. hope
- Rule: Add -ed.
- Past tense: hoped

#### 11. work
- Rule: Add -ed.
- Past tense: worked

#### 12. play
- Rule: Add -ed.
- Past tense: played

#### 13. watch
- Rule: Add -ed.
- Past tense: watched

#### 14. enjoy
- Rule: Add -ed.
- Past tense: enjoyed

---

Final Answer:

```
1. wanted
2. finished
3. washed
4. smiled
5. arrived
6. cooked
7. baked
8. called
9. visited
10. hoped
11. worked
12. played
13. watched
14. enjoyed
```

Boxed Answer:
\boxed{wanted, finished, washed, smiled, arrived, cooked, baked, called, visited, hoped, worked, played, watched, enjoyed}