1. The voice of the verb is distinct from its tense. Don't confuse the passive voice with the past tense. (Sentence 2 happens to be in the past tense, but 3 is not; both 2 and 3 are in the passive ...
His grandma was looking after him. We are going to watch a movie tonight. One way to avoid using the passive voice is to look for a ‘by’ phrase. Rewrite the sentence so that the subject in the ...