The complete sentence is: "He has promised that he shall not harm you."
Why "shall" is the correct choice:
Expression of Determination/Promise: In English grammar, when a person makes a firm promise or a statement of intent, "shall" (or sometimes "will") is used. While "will" is very common, "shall" is often used in formal English to express a commitment or a firm intention, especially when linked to an earlier promise.
The "Promise" context: Since the sentence explicitly states "He has promised," it signifies a strong commitment to a future action, making "shall" or "will" the most appropriate modal verbs to express that intent.
Why the other options don't fit:
A) might: This expresses low probability or uncertainty (e.g., "He might come, but I'm not sure"). A promise, by definition, is a certainty of intent, not a possibility.
B) may: This is often used for permission or general possibility. While it can express a wish, it is too weak for a firm promise.
C) could: This is the past tense of "can" or expresses a theoretical possibility/ability. It does not carry the weight of a firm, future-oriented commitment.
Answer verified by Quintessence Classes faculty — Karan Nagar, Srinagar.
