Reported speech
https://www.perfect-english-grammar.com/support-files/reported_statements_present_simple.pdf
https://www.perfect-english-grammar.com/support-files/reported_statements_present_continuous.pdf
https://www.perfect-english-grammar.com/support-files/reported_statements_past_simple.pdf
https://www.perfect-english-grammar.com/support-files/reported_statements_present_perfect.pdf
https://www.perfect-english-grammar.com/support-files/reported_statements_future_simple.pdf
https://www.perfect-english-grammar.com/support-files/reported_statements.pdf
https://www.perfect-english-grammar.com/support-files/say_and_tell_exercise_1.pdf
https://www.perfect-english-grammar.com/support-files/reported_questions_yes_no_present_simple.pdf
https://www.perfect-english-grammar.com/support-files/reported_questions_wh_present_simple.pdf
https://www.perfect-english-grammar.com/reported-speech-exercises.html