YOU SAID:

I have to got to the doctor to pick up my grandmother.

INTO JAPANESE

私は祖母を迎えに行くために医者に行かなければなりません。

BACK INTO ENGLISH

I have to go to the doctor to pick up my grandmother.

INTO JAPANESE

医者に行って祖母を迎えに行かなければなりません。

BACK INTO ENGLISH

You have to go to the doctor and pick up your grandmother.

INTO JAPANESE

あなたは医者に行き、祖母を迎えに行く必要があります。

BACK INTO ENGLISH

You need to go to the doctor and pick up your grandmother.

INTO JAPANESE

医者に行き、祖母を迎えに行く必要があります。

BACK INTO ENGLISH

You need to go to the doctor and pick up your grandmother.