I can't move this.

Source: Tatoeba

I'm too tired to walk any further.

I was too tired to walk any further.

Source: Tatoeba

He was too tired to walk any farther.

Source: Tatoeba

I can't walk, but I can definitely hobble.

Source: Tatoeba

Lie still.

Source: Tatoeba

They are too tired to keep climbing the mountain.

Source: Tatoeba

Let's just rest here for a little while, my feet are aching so much I can't walk.

Source: Tatoeba

I can't walk any farther.

Source: Tatoeba

She is too tired to study.

Source: Tatoeba

Planets move around a fixed star.

Source: Tatoeba