"He will want coffee."
Translation:Bydd e eisiau coffi.
There are two ways of saying "To want" in Welsh. One if "moyn" from "ymofyn" which is a verb and is primarily used in the south. Secondly is "eisiau" (and all it's forms e.g "isio") which is a noun which is used to express the act of wanting e.g the sentence above "Bydd e eisiau coffi". (Also note that since "eisiau" is a noun it does not require "yn/'n" in it's sentence construction unlike "moyn".)
Definitely no yn with eisiau, but it is needed with moyn (although it is sometimes dropped in slang speech).
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