1. REITs: Trust companies can set up real estate investment trust funds and raise funds to invest in real estate projects by issuing beneficiary certificates. This form allows investors to share real estate income and reduce investment risks by holding fund shares.

2. Real estate trust loans: Trust companies can provide real estate enterprises with trust loans for real estate development, mergers and acquisitions, reconstruction and other projects. This form can help real estate enterprises to obtain funds quickly and expand their business scale.

3. Real estate equity investment: Trust companies can directly or indirectly invest in the equity of real estate enterprises and share the profits and value-added of real estate enterprises by holding equity. This form allows trust companies to participate more deeply in the management of real estate enterprises.

4. Securitization of real estate assets: Trust companies can act as trustees of securitization of real estate assets and assist real estate enterprises to package real estate assets into securitized products and issue them in the capital market, so as to obtain funds and improve asset liquidity.

5. Investment in real estate projects: Trust companies can cooperate with real estate enterprises to jointly invest in the development of specific real estate projects. This form can allow trust companies to share project benefits and control project risks.

It should be noted that when trust companies intervene in real estate business activities, they need to abide by relevant laws and regulations to prevent market risks and policy risks. At the same time, trust companies need to fully evaluate the risks and benefits of real estate projects to ensure that the interests of investors are protected.