Question

I proposed to start a new business( rewrite using gerund)

Answer 1

I am proposing to start a new business

Answer 2

A business proposal is generally a document you’d send to a prospective client, outlining the service you’re offering, and explaining why you’re the best person for the job. It’s a pitch by a business or individual to complete a specific job or project, to supply a service, or, in some instances, to be the vendor of a certain product.
A business proposal can be either solicited or unsolicited. With a solicited proposal, the prospective client will put out a request for proposals; with an unsolicited proposal, you are approaching a client in hopes of attracting their business, even though they did not explicitly request a proposal.
While both are commonplace, a solicited proposal is an easier sell, as your prospective client has already decided that they want to make a purchase or use a service, and they’re evaluating possible vendors or businesses.
With a solicited proposal, your prospective client might have issued an RFP, or “request for proposal.” This is exactly what it sounds like—they want you to send over a business proposal, so they can take a look at it.

Pls add me brain list answer if helps you thanks