Recently, I've been feeling such a strong malaise that I don't feel like doing anything.

I wake up at 6 o'clock every morning.

Nowadays, he goes to the gym every day.

Don't you think his behavior has been strange lately?

He is suffering from fatigue from work.

I can't read his feelings.

I have a feeling that he likes me.

I think his behavior is unjust.

I think his actions are completely inhumane.

Aldehyde is a very important compound in organic chemistry.