“Mistakes were made.” “Your order has been shipped.” “The bridge was built in 1864.” The passive voice is woven right through everyday English, and yet it's one of the first things learners are told to avoid — usually with no explanation of why or when. That advice does more harm than good. The passive isn't a mistake or a bad habit; it's a deliberate tool that moves the spotlight of a sentence. Use it on purpose and your English sounds precise and professional. Use it by accident and your writing goes soft and vague. The whole difference comes down to knowing how it works.
What the passive voice actually does
Every sentence has someone or something doing an action, and someone or something on the receiving end. In the active voice, the doer comes first: “The chef cooked the meal.” The passive flips that around so the receiver takes the spotlight: “The meal was cooked by the chef.” Same facts, different focus. To build it, you take the right tense of the verb be and add a past participle — is cleaned, was cleaned, has been cleaned, will be cleaned. The original doer either moves into a “by” phrase at the end or, very often, disappears completely, because you don't always need it.
When the passive is the right choice
Reach for the passive when the doer is unknown, obvious, or simply beside the point. “My bike was stolen” is perfect — you have no idea who took it, so why pretend the subject matters? The same goes for processes and results, which is exactly why science and business lean on it: “The samples were tested,” “Your refund has been processed.” Nobody cares which particular technician ran the test; the action is the point. The passive also lets you keep an awkward or unimportant doer out of the way, so the sentence stays focused on what your reader actually came for.
When to keep it active
Most of the time, though, the active voice wins. It's shorter, it's clearer, and it tells the reader who is responsible — and that last part is exactly why the passive earns its bad reputation. “Mistakes were made” is the classic dodge: it admits something went wrong while carefully hiding who did it. “The decision was taken to close the office” sounds evasive next to “We decided to close the office.” If you notice your writing filling up with was, were, been and trailing “by” phrases, take it as a signal to flip half of them back. A good rule of thumb: write active by default, and switch to the passive only when you can name the reason.
The mistakes that give learners away
Three errors show up again and again. The first is dropping the verb be: “The house built in 1900” should be “The house was built in 1900.” The second is the wrong past participle — “The letter was wrote” instead of “was written” — because irregular verbs love to catch people out here. The third is trying to force a passive out of a verb that has no object at all. Verbs like arrive, happen, sleep and die can't be made passive, so “I was arrived” and “an accident was happened” are simply impossible. If there's no object in the active sentence, there is no passive to build.
How to make it stick
Grammar rules only become useful once your hand and mouth produce them without thinking, and the passive is easy to drill. Take active sentences and turn them passive, then back again, out loud: “They deliver the post at nine” becomes “The post is delivered at nine.” Then start noticing it in the wild — news headlines, product pages, instruction manuals and formal emails are absolutely full of it, and seeing it in real context teaches you the register far better than any table ever will. Pay special attention to the tense of be, because that's the part carrying the meaning; the participle itself rarely changes.
The passive voice isn't something to fear or forbid — it's a lens that lets you point a sentence exactly where you want it. Learn to form it cleanly, use it when the doer doesn't matter, and drop back to active the moment clarity is on the line, and you'll have real control over how your English lands. If you'd like to practise structures like this with teachers who explain the why and not just the rule, take a look at our live online courses at Kensington English — grammar makes a great deal more sense when there's someone there to answer “but what about…?”
