. "Any process that stops, prevents, or reduces the frequency, rate or extent of any TGF-beta receptor signaling pathway." . . . "negative regulation of transforming growth factor beta receptor signaling pathway" . "down regulation of transforming growth factor beta receptor signaling pathway" . "down-regulation of transforming growth factor beta receptor signaling pathway" . "downregulation of transforming growth factor beta receptor signaling pathway" . "inhibition of transforming growth factor beta receptor signaling pathway" . "negative regulation of TGF-beta receptor signaling pathway" . "negative regulation of TGFbeta receptor signaling pathway" . "negative regulation of transforming growth factor beta receptor signalling pathway" . . . . .