YOU SAID:

I'm going over there with their kids and they're gonna have a great time!

INTO JAPANESE

私は彼らの子供たちと一緒に行くつもりです、そして、彼らは素晴らしい時間を過ごすでしょう！

BACK INTO ENGLISH

I am going with their children and they will have a wonderful time!

INTO JAPANESE

私は彼らの子供たちと一緒に行くと、彼らは素晴らしい時間を過ごすでしょう！

BACK INTO ENGLISH

When I go with their children they will have a wonderful time!

INTO JAPANESE

私は彼らの子供たちと一緒に行くときに素晴らしい時間を過ごすでしょう！

BACK INTO ENGLISH

I will have a wonderful time when I go with their children!

INTO JAPANESE

私は彼らの子供たちと一緒に行く素晴らしい時間を過ごすでしょう！

BACK INTO ENGLISH

I will have a wonderful time going with their children!

INTO JAPANESE

私は彼らの子供たちと一緒に行く素晴らしい時間を過ごすでしょう！

BACK INTO ENGLISH

I will have a wonderful time going with their children!