Propose commonly takes to before a person or infinitive. Propose by is not normally used as a fixed complement after the verb.
Use propose to someone when making a suggestion or marriage proposal, and propose to do something before an infinitive. Propose by usually refers to the method used for proposing, not a fixed verb-preposition pattern.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
To introduces the person receiving the proposal.
Propose to plus a verb means intend or plan to do something.
By can describe the method used, but it is not a fixed complement selected by propose.
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.
Use to before the person receiving the proposal.
✕ She proposed by him yesterday. ✓ She proposed to him yesterday.Propose meaning intend takes to plus the base verb.
✕ They propose expand the project. ✓ They propose to expand the project.In passive sentences, by introduces the person who made the proposal.
✕ The plan was proposed to the chair. ✓ The plan was proposed by the chair.When the object is a thing, the recipient usually comes after it.
✕ She proposed to a new budget. ✓ She proposed a new budget.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, but usually only when by shows method or agent, such as by email or proposed by the committee.
Yes. Propose to do something means plan or intend to do it.
We normally say propose to someone when referring to marriage or presenting an idea to a person.
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