I pity you (ie I am threatening you) if you can't pay me the money by tomorrow.
你明天不把钱还给我,我就不客气了。
The army is/are threatening to take over if civil unrest continues.
军方声称如内乱不平息将实行军管。
My landlord's threatening to put the rent up by 10 a week.
我的房东要挟说要把每周租金提高10英镑。