The given sentence is divided into three segments. Select the option that has the segment with a grammatical error.
She have left by the time I reach home.

Correct option is C

Option (c) contains an error.
Explanation:
The subject "She" is singular, so it must be followed by the singular form of the verb "has", not the plural "have". The correct construction should be:
“She has left by the time I reach home.”
Grammatical rule used:
Subject-Verb Agreement: A singular subject takes a singular helping verb like has, while plural subjects take have.
Example:
Correct: He has gone.
Incorrect: He have gone.
Information Booster:
In present perfect tense (has/have + V3), use has with he/she/it and singular nouns; use have with I/you/we/they and plural nouns.