Boost is used with several prepositions depending on meaning. Boost by shows an amount, boost to shows a new level, and boost with shows a method or tool.
Use boost by for increases in amount, boost to for reaching a level, boost with for the method used, boost in for improvement in an area, and boost for when something receives support or benefit.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Boost by states how much something increases.
Boost to introduces the final amount, score, or level.
Boost with introduces the thing used to improve something.
Boost in is common after nouns such as confidence, sales, or performance.
Boost for often appears with nouns and means encouragement or advantage.
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.
Boost by gives the amount of change, not the final level.
✕ They boosted sales by 5,000 units a month. ✓ They boosted sales to 5,000 units a month.Boost in is more natural after a noun such as increase or boost.
✕ They boosted in confidence. ✓ They gained a boost in confidence.Boost with introduces the method; boost by introduces the amount.
✕ The campaign boosted sales with 12%. ✓ The campaign boosted sales by 12%.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Yes. You can say boost sales, boost confidence, or boost performance directly.
Boost by gives the amount of increase, while boost to gives the final level reached.
Usually no. Boost in is more common after the noun boost, as in a boost in sales.
Create a free account to check complete texts, apply suggestions, and save your documents.
