English Grammar – Spot the error (choose the erroneous segment or ‘‘No error’’). Sentence: We are trying to locate the historical city for the past two years.

Introduction / Context:
The sentence tests correct tense for an action that began in the past and continues up to the present. English requires the present perfect continuous for such duration-marked activities.

Given Data / Assumptions:

• Duration marker: “for the past two years”.
• Ongoing action: “trying to locate the historical city”.
• Current form used: present continuous “are trying”.

Concept / Approach:
Use “have/has been + -ing” for actions that started earlier and continue now: “We have been trying … for the past two years.” Present continuous (“are trying”) describes “right now,” not an action sustained across two years, so it clashes with the duration phrase.

Step-by-Step Solution:

Verification / Alternative check:
Try removing the duration: “We are trying to locate …” becomes fine. The error emerges only because “for the past two years” demands “have been trying”.

Why Other Options Are Wrong:

• B, C, D: Lexically and structurally fine once the tense is corrected.
• E: Not valid since an error is present in A.

Common Pitfalls:
Using present continuous with “for/since + time period”; forgetting the perfect aspect for continuing states and actions.

Final Answer:
We are trying