<p>in the wild pygmy chimpanzees are found only in an inaccessible region south of the zaire river, since such is the case, very few are in capacity.</p>
<p>why this sentence is incorrect?</p>
<p>You should type the sentence as is. Not capitalizing words confuses others (like me), and that sentence technically has multiple errors.</p>
<p>Assuming “In” and proper nouns are capitalized, the mistake occurs at “river, since such is the case” – you have what is called a comma splice. In English, you don’t use commas to separate independent clauses.</p>
<p>so since need ;? since cannot be used as conjunction???</p>
<p>bump10char</p>
<p>“since” is the beginning of an independent clause - it needs a semicolon.</p>
<p>Look at it this way: if the entire second half of the sentence could stand on its own as a separate sentence, then it needs a semicolon.</p>