Conjugated Spanish verbs are also adopted into Tagalog. Examples include: "pára" (from Sp. "parar"), "pása" (from Sp. "pasar"), "puwede" (from Sp. "poder"), "tíra" (from Sp. "tirar") and "sige" (from Sp. "seguir"). "Imbiyerna" (meaning to annoy or to irritate someone) is derived from the Spanish verb "infernar" (meaning to irritate or to provoke) and was allegedly coined by Ricardo "Rikki" Dalu, originally to describe the hellish feeling and the frustration he experienced when attending Spanish classes. In some cases, the conjugated verbs are combined with another word to form Tagalog morphemes like in the case of the following words: "asikaso" (from the combination of Sp. "hacer" and Sp. "caso"), "balewala" or "baliwala" (from the combination of Sp. "valer" and Tag. "wala"), "etsapwera" (from the combination of Sp. "echar" and Sp. "fuera") and "kumusta" (from the combination of Sp. "cómo" and Sp. "estar").