YOU SAID:

These last few days must be difficult

INTO JAPANESE

ここ数日は大変でしょうね

BACK INTO ENGLISH

It's going to be tough these past few days.

INTO JAPANESE

ここ数日は大変なことになりそうです。

BACK INTO ENGLISH

The next few days are going to be tough.

INTO JAPANESE

これからの数日は厳しいものになるだろう。

BACK INTO ENGLISH

The next few days will be tough.

INTO JAPANESE

これからの数日は厳しいものになるだろう。

BACK INTO ENGLISH

The next few days will be tough.