YOU SAID:

sometimes jokes aren't funny

INTO JAPANESE

時にはジョークが面白くない

BACK INTO ENGLISH

Sometimes joke is not fun

INTO JAPANESE

時には冗談は楽しいものではない

BACK INTO ENGLISH

Sometimes a joke is not fun

INTO JAPANESE

時々ジョークは楽しいものではない

BACK INTO ENGLISH

Sometimes a joke is not fun