1. Reported speech
We use when we want to convey someone's statement is not quoting exactly what someone said, but passing the contents of the speech. In English, we use reported speech very often so mastering this material is an important step in learning the language.

2. Reported speech we formed
The change of tense
Without changing the time

3. Change time 1) Present Simple -> Past Simple
Kasia said : "I am tired"
Kasia said (that) she was tired
2) Present Continuous -> Past Continuous
I said : "I am doing my homework"
I said (that) I was doing my homework

4. 3) Past Simple -> Past Perfect
Bartek said : "I was in Warsaw last year"
Bartek said (that) he had been in Warsaw the year before
4) Past Continuous -> Past Perfect Continuous
Kacper said : "I was running"
Kacper said (that) he had been running
5) Present Perfect -> Past Perfect
Monika said : "I have lived in Poland"
Monika said (that) she had lived in Poland

5. 6) Present Perfect Continuous -> Past Perfect Continuous
Michał said : "I have been cleaning my room"
Michał said (that) he had been cleaning his room
7) Future Simple -> Future In The Past (modal verb will-> would, shall-> should)
Teacher said : "we will finish write test in 5 minutes"
Teacher said (that) we would finish write test in 5 minutes
8) Future Continuous -> Continuous Future In The Past
Father said : "I will be going to Warsaw next week"
Father said (that) he would be going to Warsaw the following week

6. 9) Future Perfect -> Future Perfect In The Past
Tomek said : " I will have repaired that car tomorrow at 7"
Tomek said (that) he would have repaired that car the next day at 7
10) Modal verbs (as in 7 + can-> could, may ->
might, have this -> had to, must -> had to, could, should, ought to -> do not change)
My mum said : "you must clean your room"
My mum said (that) I had to clean my room