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 ...

(active with pronouns) The effectiveness of the treatment was investigated using ELISA, showing a four-fold decrease. (passive without pronouns) Active verbs: Investigating (instead of investigated) ...

In English, we can express sentences in two different ways: active voice and passive voice. The active voice is used when the focus is on the subject (or agent) of the main verb. This is the ...

Use the passive voice to focus on the receiver of the action (direct object). Reed-Kellogg sentence diagrams were invented to help students learn grammar. The focus is on the diagrams and not on the ...