Does the quality of English in your essays matter?
That’s no-brainer. It does. Higher the quality, the better it is. After all it’s reflective of your communication skills.
But how accommodative are admission committees of your sub-par English – rule-based things (grammar, punctuation, and spelling) as well as style (structure, transition, variation in sentences, and so on).
Before getting into it, let’s first see some of the examples (source: Harbus Essay Guide, a compilation of essays of 16 students admitted to class of 2017 at HBS) where admits to HBS deviated from the canons of good English (comments in brackets):