I need to spend less money if I want to have enough to buy concert tickets.
You need to talk less, you almost told everyone your secrets!
My sister has more shirts in her wardrobe than me.
If you eat less than you should, you'll probably get anemia.
Last night I drank more coffee cups than I expected.
I bought more rice than I needed, and now I don't know what to do with it.
I got fewer calls from my relatives on my birthday than I got last Christmas.
You need to add more information to your essay if you want to score a higher grade.
Sometimes I sleep more than I should and I end up getting late to work.