

Passive voice often produces unclear, wordy sentences, whereas active voice produces generally clearer, more concise sentences. In contrast, active voice produces a sentence in which the subject performs an action. Passive voice produces a sentence in which the subject receives an action. In the first five Google results for "passive voice", you've got Hamilton College's English Department sniping The First Deadly Sin That said, it's worth saying that the reason Microsoft Word always dings the passive voice is because English teachers generally ding the passive voice. Mr C is right that there's no problem with the passive voice here Ms A is right that there is a different problem with your example sentence and your 'where' should be 'when'.
