the sequence of tenses will help you do many things:
It helps you explain what someone else said
It helps you with conditional sentences (using
the word "if")
It helps you make sentences using the word "wish"
Here are some examples:
Someone says, "I need to go to the store."
She said that she needed to go to the store.
You change "need" to "needed" but the situation
is still in the present. This is a strange thing about
English, but many Americans do this properly without thinking
Here's another example:
If you could meet me at the airport,
I would be grateful.
In this situation, "can" changes
to "could." Why? Because "if" is present and the sentence is
conditional. We will practice conditional sentences in Lessons
11, 12, and 13.
Here's an example using "wish":
I wish I had been at the party last
This sentence indicates that something
did not happen in the past, but it uses the past perfect to
express it. Confused? Take a look at the chart below and then
go on to the next three lessons.
Sequence of Tenses
Present Continuous Past
Present Perfect Past
The chart above is is also
found in the Yellow Level, Lesson