【是倒装句吧Somewhatmorepromisinghavebeenrecentexperimentsforreleasingcapillarywater(waterinthesoil)abovethewatertablebyinjectingcompressedairintotheground.是倒装句吗?recentexperimentsforreleasingcapillarywater(】

　　是倒装句吧

　　Somewhatmorepromisinghavebeenrecentexperimentsforreleasingcapillarywater(waterinthesoil)abovethewatertablebyinjectingcompressedairintotheground.是倒装句吗?recentexperimentsforreleasingcapillarywater(waterinthesoil)abovethewatertablebyinjectingcompressedairintothegroundhavebeenSomewhatmorepromising这样改对吗?

　　havebeen后面不应该是动词吗，为什么会是experiment