When the principal clause is in the past tense When the principal (main) clause is in the past tense, the verb in the subordinating clause also should be in the past tense. He said (main clause) that he was not guilty (subordinate clause). He asked (main clause)...
Sometimes the time expressed in a main clause is different from the time expressed in a subordinate clause. This can confuse ESL students because they don’t know whether it is appropriate to use different...