Present continuous

We use the present continuous to talk about wath's happening now.

Form
+ Subject + verb to be + -ing form
I am serving
- Subject + verb to be + not + -ing form
I'm not serving
? Verb to be + subject + -ing form
Am I serving?

Prepositions of time

-We use in with parts of the day, months, years and seasons.
In (the morning, November, 2010, autum.)
-We use at whit times.
At eight o'clock.
-We use on with days.
On saturday.
We use from... to... to show the beginningand end of something.
Open from ten to eleven.