Use replace with when you name the new thing. Use replaced by in passive sentences to name what takes the place of something else.
In active sentences, use replace something with something else. In passive sentences, use something is replaced by something else.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
With introduces the thing that takes the place of another.
By introduces the thing that replaces something else in passive sentences.
Replace can also be used directly without another preposition.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
Modern English prefers replace with in active sentences.
✕ replace the screen by a larger one ✓ replace the screen with a larger oneUse by mainly in passive forms.
✕ They replaced by a newer system. ✓ They were replaced by a newer system.Passive forms usually take by, not with, for the replacing item.
✕ The engine was replaced with a newer model. ✓ The engine was replaced by a newer modelReplace usually needs the thing being replaced.
✕ replace with a spare part ✓ replace the damaged part with a spare partChoose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Yes, mainly in passive structures such as was replaced by.
That pattern is uncommon with replace. Use replace A with B instead.
No. You can simply say replace someone or something when no replacement is named.
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