Grade 10 Language Structures worksheet with Present Simple and Past Simple verb correction exercises.

Task: Correct the verbs between brackets in the given sentences.

#### 1. Present Simple
The Present Simple tense is used for habitual actions, general truths, or routines. The verb form depends on the subject:
- For most subjects (I, you, we, they), the verb remains unchanged.
- For third-person singular subjects (he, she, it), the verb usually adds -s or -es.

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##### Problem 1:
1. a) My classmates always (speak) in English.
- Solution: "My classmates always speak in English."
- Explanation: "Classmates" is a plural subject, so the verb remains unchanged.

2. b) It's a good way to improve your language.
- No correction needed. This sentence does not contain a verb in brackets.

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##### Problem 2:
2. a) Ali usually (comb) his hair in the morning.
- Solution: "Ali usually combs his hair in the morning."
- Explanation: "Ali" is a third-person singular subject, so the verb "comb" needs an -s to become "combs."

2. b) He's a tidy boy.
- No correction needed. This sentence does not contain a verb in brackets.

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##### Problem 3:
3. a) Huda often (come) late to school.
- Solution: "Huda often comes late to school."
- Explanation: "Huda" is a third-person singular subject, so the verb "come" needs an -s to become "comes."

3. b) She should come early.
- No correction needed. This sentence does not contain a verb in brackets.

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##### Problem 4:
4. a) We sometimes (buy) our things from this shop.
- Solution: "We sometimes buy our things from this shop."
- Explanation: "We" is a plural subject, so the verb remains unchanged.

4. b) But it's very expensive.
- No correction needed. This sentence does not contain a verb in brackets.

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2. Past Simple

The Past Simple tense is used for actions that happened in the past. Regular verbs form the Past Simple by adding -ed, while irregular verbs have specific forms.

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##### Problem 1:
1. a) My father (buy) a new car last week.
- Solution: "My father bought a new car last week."
- Explanation: "Buy" is an irregular verb, and its Past Simple form is "bought."

2. b) Congratulations.
- No correction needed. This sentence does not contain a verb in brackets.

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##### Problem 2:
2. a) The old Kuwaitis (build) the wall of Kuwait.
- Solution: "The old Kuwaitis built the wall of Kuwait."
- Explanation: "Build" is an irregular verb, and its Past Simple form is "built."

2. b) That was to defend Kuwait against enemies.
- No correction needed. This sentence does not contain a verb in brackets.

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##### Problem 3:
3. a) He (not read) any book yesterday.
- Solution: "He didn't read any book yesterday."
- Explanation: "Read" is an irregular verb, and its Past Simple form is "read." To negate it, use "didn't" + base form of the verb.

3. b) Maybe he was too busy.
- No correction needed. This sentence does not contain a verb in brackets.

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##### Problem 4:
4. a) Where is your brother?
- No correction needed. This sentence does not contain a verb in brackets.

4. b) He (leave) for Dubai a month ago.
- Solution: "He left for Dubai a month ago."
- Explanation: "Leave" is an irregular verb, and its Past Simple form is "left."

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Final Answers:

#### 1. Present Simple
1. a) speak
2. a) combs
3. a) comes
4. a) buy

#### 2. Past Simple
1. a) bought
2. a) built
3. a) didn't read
4. b) left

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Boxed Final Answer:

\boxed{
\begin{aligned}
&\text{1. Present Simple:} \\
&\quad \text{1.a) speak} \\
&\quad \text{2.a) combs} \\
&\quad \text{3.a) comes} \\
&\quad \text{4.a) buy} \\
\\
&\text{2. Past Simple:} \\
&\quad \text{1.a) bought} \\
&\quad \text{2.a) built} \\
&\quad \text{3.a) didn't read} \\
&\quad \text{4.b) left}
\end{aligned}
}