Is the comma in this sentence bad grammar You will be expected to complete your homework by the deadline set by your class teachers comma here and to work to high standards in terms of quality?

Answer 1

Yes. A comma is only necessary if the conjunction is joining two independent clauses--a clause with a subject and a verb. Because "you" is the subject for both "to complete" and "to work," the word "and" is joining the verbs, not the clauses.

Answer 2

Yes, the comma before "and" is unnecessary in this sentence. It is an example of a comma splice, where two independent clauses are incorrectly joined together with a comma. The sentence can be revised by removing the comma before "and" or by using a semicolon to separate the clauses correctly.