The tricky thing is that there can be overlap.

"During," though, can refer to an entire period.

"During" actually has two uses.

It can refer to an entire period

or at some time within a period.

For example:

Now, if "during" refers to an entire period,

we have to recall one more preposition

with a similar use: "throughout."

An example:

"Throughout" really emphasizes the entire period

from beginning to end.

We've been talking about periods of time.

So which preposition could we use with weekend?

In American English there are two common choices.

We often talk about what we do

or things that happen

ON the weekend or OVER the weekend.

We say:

"On" simply answers the question WHEN?

One might also say:

"Over" also answers the question WHEN?

But this emphasizes that you need the whole period to do something.

You won't finish before the end of that period.

Be sure not to confuse two different ways

we use the preposition "over."

Another preposition with more than one use is "in."

The focus so far has been on periods of time.

We can say:

I told you that we use "in" with longer periods of time.

"In the month of February" is closest in meaning to...

What if I say:

Does "in" have the meaning of "during"?

No.

And the period of time here is much shorter.

10 minutes.

I can use "in" with any amount of time.

- A short period of a long period.

"In" can have the meaning of "after."

I know the different uses and the overlap

can be confusing.

My advice to help you remember

is to study the patterns I've shown you -

like IN the morning, IN the afternoon, IN the evening.

And study key examples,

like "I'll be home in 10 minutes."

Let's try an exercise to review

the six prepositions of time that we've looked at.

The story in the exercise is one that I made up

because it's fun to imagine things sometimes, isn't it?

Now it's your turn.

That's all for now.

Thanks for watching. Happy studies!