Identify the segment in the sentence which contains a grammatical error. I didn’t knew you had gone to Goa for a vacation.
I didn’t knew
Identifying the Grammatical Error
The question asks us to identify the segment in the given sentence that contains a grammatical error. The sentence is: "I didn’t knew you had gone to Goa for a vacation."
Analysing the Sentence Structure and Verb Forms
Let's examine each segment provided in the options to pinpoint the grammatical error. The sentence uses the auxiliary verb "did not" (contracted as "didn't"). A fundamental rule in English grammar is that when you use the auxiliary verb "do," "does," or "did," the main verb that follows must be in its base form (the infinitive without "to").
Consider the verb "know." Its forms are:
- Base Form: know
- Past Simple: knew
- Past Participle: known
In the sentence, the phrase is "I didn't knew." Here, "didn't" is the auxiliary verb (past tense of "do"), and "knew" is the main verb used. According to the rule, the base form of the verb should follow "didn't." The base form of "knew" is "know."
Therefore, the correct phrasing should be "I didn't know." The use of "knew" after "didn't" is grammatically incorrect.
Examining Other Segments
Let's briefly look at the other segments to confirm they are grammatically sound within this context:
- "for a vacation": This is a prepositional phrase indicating the purpose of the trip. It is grammatically correct.
- "you had gone": This is the past perfect tense (had + past participle). It is used here to indicate an action (going) that happened before another past action or point in time (the speaker not knowing). This structure is grammatically correct in this context.
- "to Goa": This is a prepositional phrase indicating destination. It is grammatically correct.
Based on the analysis, the segment containing the grammatical error is "I didn’t knew". The verb "knew" should be in its base form, "know," when used with the auxiliary "didn't."
Conclusion on the Grammatical Error
The error lies in using the past tense form "knew" after the auxiliary verb "didn't." The correct structure requires the base form of the main verb.
| Auxiliary Verb | Main Verb Form Required | Example |
|---|---|---|
| do / does | Base Form | He does not go. |
| did | Base Form | They did not come. |
| didn't | Base Form | I didn't know. |
Revision Table: Verb Forms with 'Did/Didn't'
| Incorrect Usage | Correct Usage | Explanation |
|---|---|---|
| I didn't went | I didn't go | Use the base form 'go' after 'didn't', not the past tense 'went'. |
| She didn't ate | She didn't eat | Use the base form 'eat' after 'didn't', not the past tense 'ate'. |
| We didn't saw | We didn't see | Use the base form 'see' after 'didn't', not the past tense 'saw'. |
| He didn't wrote | He didn't write | Use the base form 'write' after 'didn't', not the past tense 'wrote'. |
Additional Information: Auxiliary Verbs and Base Forms
Auxiliary verbs, also known as helping verbs, are used with a main verb to form verb phrases. "Do," "does," and "did" are forms of the auxiliary verb "to do." They are commonly used to form negative sentences and questions.
When "do," "does," or "did" are used as auxiliaries, they carry the tense or number information (e.g., "does" for third person singular present, "did" for past tense). The main verb that follows remains in its simplest form, the base form.
- Positive Sentence: You knew. (Past tense)
- Negative Sentence: You did not know. (Auxiliary 'did' takes the past tense, main verb is base form 'know')
- Question: Did you know? (Auxiliary 'did' takes the past tense, main verb is base form 'know')
Understanding this rule is crucial for forming correct negative sentences and questions in English, especially in the simple present and simple past tenses.
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