<p>“This incident soon led to my breaking of the bone.”</p>
<p>Please only answer if you’re 100% certain.</p>
<p>What say you?</p>
<p>No. Breaking cannot be used as a noun (at least in your usage), so it is not grammatically correct. We know “breaking” is a noun in this sentence because you are in possession of it. Rephrase to say “Consequently, I broke the bone.”</p>
<p>Side note: context would be helpful- it would allow me to structure the sentence more appropriately to flow with your other sentences.</p>
<p>It’s correct, without a shadow of a doubt. </p>
<p>“Breaking” can absolutely be a noun (a gerund), and gerunds require genitive (possessive) pronouns.</p>
<p>OP: Yes, it is a phrase frequently overheard at loanshark debt collectors’ meetings.</p>
<p>To the extent that the phrase “braking of the bone” is logical in the context used then “my braking of the bone” is strictly speaking grammatically correct.</p>
<p>The use in your question is that of a noun phrase with “breaking” the gerund form of the verb to break. You need the possessive form of pronouns in this case so “my breaking …” is appropriate.</p>
<p>This said the noun phrase “breaking of the bone” may make sense in medical practice, as for example to describe a common surgical procedure. But in your case the phrasing is uncommon and awkward. If you meant to say that a sports injury or a fall caused your bone to break, then there are better and clearer ways to say that than the one you used. So in my opinion this is not a SAT quality question, and if the phrase were offered as a choice in a writing question I wouldn’t pick it because it is an awkward way to state something simple.</p>
<p>My mistake. It is a rather peculiar sentence because it refers to a specific bone, so it doesn’t make sense out of context. Additionally, I see how “breaking” is a gerund, but it’s seldom used as one.</p>