「暇だから」 is what Kim calls a "state-of-being": the main word is a noun (「暇」), rather than a verb. (「から」 in this case is a conjunction meaning "because" or "since". 「だ」 is merely the declarative particle: in this case, it indicates the end of the noun-clause.)
「暇だから」 is what Kim calls a
「暇だから」 is what Kim calls a "state-of-being": the main word is a noun (「暇」), rather than a verb. (「から」 in this case is a conjunction meaning "because" or "since". 「だ」 is merely the declarative particle: in this case, it indicates the end of the noun-clause.)