Past and Present Tense Worksheet for Grade 3 Students

Problem Description:

The task is to rewrite each sentence in the past tense. The hint provided suggests that most verbs form their past tense by adding "-ed" to the end of the verb. However, some verbs may have irregular forms, so we need to consider those as well.

Solution:

#### Sentence 1:
Original: They water their garden.
Past Tense: They watered their garden.
- Explanation: The verb "water" becomes "watered" by adding "-ed".

#### Sentence 2:
Original: Jackie finishes her homework.
Past Tense: Jackie finished her homework.
- Explanation: The verb "finishes" becomes "finished" by changing the ending from "-es" to "-ed".

#### Sentence 3:
Original: You complete several puzzles this year.
Past Tense: You completed several puzzles this year.
- Explanation: The verb "complete" becomes "completed" by adding "-ed".

#### Sentence 4:
Original: I compose poems for my friends.
Past Tense: I composed poems for my friends.
- Explanation: The verb "compose" becomes "composed" by adding "-d" (not "-ed" because it already ends with an "e").

#### Sentence 5:
Original: We wash dad's car.
Past Tense: We washed dad's car.
- Explanation: The verb "wash" becomes "washed" by adding "-ed".

#### Sentence 6:
Original: They walk to school.
Past Tense: They walked to school.
- Explanation: The verb "walk" becomes "walked" by adding "-ed".

Final Answer:

1. They watered their garden.
2. Jackie finished her homework.
3. You completed several puzzles this year.
4. I composed poems for my friends.
5. We washed dad's car.
6. They walked to school.

Boxed Final Answer:
\[
\boxed{
\begin{aligned}
1. & \text{ They watered their garden.} \\
2. & \text{ Jackie finished her homework.} \\
3. & \text{ You completed several puzzles this year.} \\
4. & \text{ I composed poems for my friends.} \\
5. & \text{ We washed dad's car.} \\
6. & \text{ They walked to school.}
\end{aligned}
}
\]