Using Prepositions – In, On, At, Ago;
IN
Season of the year
Winter, Spring, Summer
Years and Centuries
2018, 2020, 21st century
Months
January, February, November
Parts of the day, years…
In an hour, In 5 years, In 3 days, In 5 weeks
ON
Days
Monday,
Tuesday,
Wednesday,
Friday, Saturday…
Datest
On Christmas day,
On my birthday
AT
Clock Times
At 7,
At half past nine,
At twenty,
At eight o’clock…
Mealtimes
At breakfast,
At lunchtime,
At teatime
AGO
Specific time in the past
Ten minutes ago,
two hours ago,
4 days ago,
3 month ago,
a long time ago
Leaning English