你们的you(plural); your

• 你们几个人往哪里去？

  Where are you all going?

• 你们一共是几个人？

  How many of you are there altogether?

• 只有你们俩来了。

  Only you two came.

• 最好你们两位一起去。

  It's best if you two go together.

• 这是你们大家的意见吗？

  Is this the opinion of all of you?