The correct expression of the sentence should read, "The ninjas were still chasing me, so I led them downstairs."
To make the sentence to be grammatically correct as a compound sentence, the past tense of "lead" should be used in its place, and there should be a "comma" after "me."
The two independent clauses are joined with a comma and coordinating conjunction, making it a compound sentence.
Thus, putting a "comma" after "me" and picking "led" instead of "lead" makes the sentence to be grammatically correct.
Read more: https://brainly.com/question/22153815
