YOU SAID:

i plan on biking to work tomorrow morning

INTO JAPANESE

私は明日の朝働くために自転車に乗ることを計画する

BACK INTO ENGLISH

I plan to ride a bike to work tomorrow morning

INTO JAPANESE

明日の朝仕事に自転車に乗るつもりです

BACK INTO ENGLISH

It is going to ride the bike to work tomorrow morning

INTO JAPANESE

明日の朝仕事に自転車に乗る予定です

BACK INTO ENGLISH

I am going to ride a bike for work tomorrow morning

INTO JAPANESE

私は明日手紙を書くつもりです。

BACK INTO ENGLISH

I am going to write a letter tomorrow.

INTO JAPANESE

私は明日手紙を書くつもりです。

BACK INTO ENGLISH

I am going to write a letter tomorrow.