疲(つか)れ()て()い()た() tsukareteitaので node何(なに)も() nanimoする suru気(き)が()し()な()か()っ()た() kigashinakatta。 I was tired and didn't feel like doing anything. Literal Tired [because-ので] anything do feeling [subject-が] did-not. 何もする気がしなかった means 'didn't feel like doing anything.' ~気がする means 'to feel like, have a sense of.' The negative past creates 'didn't feel like.' emotionstiredness~ので (because)何も~ない (nothing)
疲(つか)れ()て()い()た() tsukareteitaので node何(なに)も() nanimoする suru気(き)が()し()な()か()っ()た() kigashinakatta。 I was tired and didn't feel like doing anything. Literal Tired [because-ので] anything do feeling [subject-が] did-not. 何もする気がしなかった means 'didn't feel like doing anything.' ~気がする means 'to feel like, have a sense of.' The negative past creates 'didn't feel like.' emotionstiredness~ので (because)何も~ない (nothing)