The sine wave, with its repeating pattern, can represent a single frequency with no harmonics.
you are going to die in 2012
'Would you like this candy or these desserts to follow the meal?'This is being used as an indicator for a singular item, and these is being used as an indicator for multiple items.See the related...
I have decided to clean out my garage next week. - as a verb we are having a clean out at home on the weekend. - as a noun
Example sentence - I heated the water in the kettle to make tea.