Question

Identify the grammatically correct sentence:

• A. How long have you been working in this organisation?
• B. When did you worked in this organisation?
• C. How long are you working in this organisation?
• D. When you have worked this organisation?

Hint:

Remember that "how long" is typically used with perfect continuous tenses (e.g., present perfect continuous) to inquire about the duration of an ongoing action. "When" is used for a specific point in time. Also, ensure the main verb is in its base form after "do/does/did" in questions.

Answer 1

The Correct Option is A

Step 1: Analyze the grammatical structure and tense usage of each sentence.

(1) How long have you been working in this organisation? This sentence uses the present perfect continuous tense ("have been working"). This tense is correctly used to ask about the duration of an action that started in the past and is still continuing up to the present moment. "How long" is the appropriate interrogative phrase for duration. This sentence is grammatically correct.
(2) When did you worked in this organisation? This sentence is grammatically incorrect. When the auxiliary verb "did" is used in a simple past interrogative sentence, the main verb should be in its base form (infinitive without 'to'). The correct form would be "When did you \textit{work} in this organisation?"
(3) How long are you working in this organisation? This sentence uses the present continuous tense ("are working"). While "how long" can sometimes be used with the present continuous for temporary situations, it is less common and less precise than the present perfect continuous when inquiring about a continuous activity over a period leading up to the present. The present perfect continuous (as in option 1) is generally preferred for expressing duration.
(4) When you have worked this organisation? This sentence is grammatically incorrect. It lacks the correct interrogative structure (the auxiliary verb should precede the subject for a question) and the preposition "in" or "for" is missing before "this organisation." Additionally, "When" typically asks for a point in time, while "have worked" (present perfect) refers to an action completed at an unspecified past time or continuing from the past to the present, making "How long" more suitable for duration.

Step 2: Conclude the most grammatically correct sentence.
Based on the analysis, option (1) is the only grammatically correct and appropriately structured sentence among the given choices.