YOU SAID:

the party starts when i come

INTO JAPANESE

私が来るとパーティーが始まります

BACK INTO ENGLISH

The party will begin when I come

INTO JAPANESE

パーティーは私が来るときに始まります

BACK INTO ENGLISH

The party begins when I come

INTO JAPANESE

パーティが始まるときに来た

BACK INTO ENGLISH

When the party starts to come

INTO JAPANESE

パーティーが来るを開始したとき

BACK INTO ENGLISH

Party will come when you start

INTO JAPANESE

起動するとパーティーが来る

BACK INTO ENGLISH

Come to launch party

INTO JAPANESE

打ち上げパーティーに来てください。

BACK INTO ENGLISH

Please come to the party.

INTO JAPANESE

パーティに来てください。

BACK INTO ENGLISH

Come to our party.

INTO JAPANESE

私たちのパーティーに来る。

BACK INTO ENGLISH

Come to our party.