ผมคิดว่าคุณต้องบอกให้เข้าหยุดไม่งั้

ผมคิดว่าคุณต้องบอกให้เข้าหยุดไม่งั้นเขาคงต้องอยู่ในโรงพยาบาลตลอดชีวิต

Results (English) 1:

I think you must to stop or else he must remain in the hospital for life.

Results (English) 2:

I think you have to tell him to stop or else he would have to stay in hospital for life.

Results (English) 3:

I think you need to stop or he would have to stay in hospital for the rest of my life.