Prepositions of Time worksheet for sorting time expressions into "AT," "ON," and "IN" categories.

Problem Overview:

The task involves categorizing different time expressions using the prepositions AT, ON, and IN. The goal is to place each time expression in the correct column based on the rules of English grammar for prepositions of time.

Rules for Prepositions of Time:

1. AT is used with specific times (e.g., hours, minutes).
2. ON is used with days and dates.
3. IN is used with months, years, seasons, centuries, and general periods of time.

Solution:

We will analyze each time expression and categorize it accordingly.

#### AT (Specific Times):
- 10:30
- noon / midday
- midnight
- bedtime

#### ON (Days and Dates):
- Sunday
- Tuesday afternoon
- Wednesday evening
- February
- a weekday
- May 5
- my birthday
- the weekend
- Monday morning

#### IN (Months, Years, Seasons, Centuries, General Periods):
- spring
- winter
- 2013
- a holiday
- the evening
- the afternoon
- night
- the 1990s
- summer
- fall / autumn

Final Answer:

Here is the categorized list:

| AT | ON | IN |
|----------------------|----------------------------|------------------------------|
| 10:30 | Sunday | spring |
| noon / midday | Tuesday afternoon | winter |
| midnight | Wednesday evening | 2013 |
| bedtime | February | a holiday |
| | a weekday | the evening |
| | May 5 | the afternoon |
| | my birthday | night |
| | the weekend | the 1990s |
| | Monday morning | summer |
| | | fall / autumn |

Explanation:

- AT is used for precise times like "10:30," "noon," "midnight," and "bedtime."
- ON is used for specific days or parts of days, such as "Sunday," "Tuesday afternoon," "Wednesday evening," etc.
- IN is used for broader time periods like seasons ("spring," "winter"), years ("2013"), holidays, and general times of day ("the evening," "the afternoon").

This categorization follows the standard rules for using prepositions of time in English.

Final Answer:
\boxed{
\begin{array}{|c|c|c|}
\hline
\textbf{AT} & \textbf{ON} & \textbf{IN} \\
\hline
10:30 & \text{Sunday} & \text{spring} \\
\text{noon / midday} & \text{Tuesday afternoon} & \text{winter} \\
\text{midnight} & \text{Wednesday evening} & 2013 \\
\text{bedtime} & \text{February} & \text{a holiday} \\
& \text{a weekday} & \text{the evening} \\
& \text{May 5} & \text{the afternoon} \\
& \text{my birthday} & \text{night} \\
& \text{the weekend} & \text{the 1990s} \\
& \text{Monday morning} & \text{summer} \\
& & \text{fall / autumn} \\
\hline
\end{array}
}