How to say “I am tired” in other ways?

I’d like to show a lot of ways to explain it. Let’s have a look.

• I’m worn out
• I’m beat
• I’m spent
• I’m done
• I’m knackered
• I’m dead on my feet
• I’m bushed
• I’m exhausted
• I’ve had it
• and…my favourite one: I can hardly keep my eyes open.

P.S. hardly – it has another meaning than (hard + ly) like absolute + ly. Hardly uses to emphasize a minimal amount of something.