趣味 means hobby, so the examples are 私の趣味は、音楽を聞く事です。 My hobby is listening to musis. 私の趣味は、映画を見る事です。 My hobby is wstching movie.

Japanese doesn't necessarily have a future tense unless you indicate there's a day in the future of which you are specifying. For example, 「明日の夜、ばんごはんを食べます。」means ''Tomorrow night, I'm going to eat dinner.'' But you could simply take out the 'tomorrow night' part and it would become ''I'm eating dinner''. (Unless discussed otherwise within context) Here's a list of sentences to answer your question using [趣味・to dance・to sleep」 (-masu form and Te sentence joining) 「趣味は寝て、踊ります。」 Translation: My hobbies are to sleep and to dance. (Not gonna lie though, this one is awkward if you use them in this context.) (-masu form/ te sentence joining (English version is the standard 'and') /the japanese version of -ing) 「趣味は寝ていて、踊っています。」 Translation: My hobbies are sleeping and dancing. (-masu form/ shi sentence joining (this is the same as 'and' except it can only join verbs and means something close to (etc.) like there's more hobbies you have but you're only listing these two) / -teiru form (same as last)) 「趣味は寝ているし、踊っています。」 Translation: My hobbies are sleeping, dancing, and so on. (This one gets tricky to translation without context) It could also be ''Some of my hobbies are sleeping and dancing. Looking at SunSSFS's comment, you could also use a casual form which should strictly be used with close friends/good acquaintances. 「趣味は寝ていて、踊ってる。」 「趣味は寝ているし、踊ってる。」 （To Sleep： ねる・ねている） （To Dance: おどる・おどってる） For past tense,　let's say you no longer have those hobbies. 「趣味は寝ていて、踊っているのでした。」

I'm not Japanese but I tried my best. English: Japanese(Romaji) Past(Romaji) Dance:　踊る(odoru) 踊った(odotta) Sleep:　寝る(neru) 寝た(neta)

わたしの趣味は、踊る事と寝る事です。 であっているかな？ it means In my freetime, I like dancing and sleeping.