Grammar revision: conditionals, reported speech, question tags

Conditional sentences

Type 0: Zero Conditional: certainty
An iron bar expands if/when you heat it.
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Type 1: First Conditional: real possibility
If you do that again, I’ll leave.
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Type 2: Second Conditional: unreal possibility or dream
I would tell you the answer if I knew it. / If I were you, I wouldn’t do that again.
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Type 3: Third Conditional: no possibility
I would have told you the answer if I had known it.
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Simple reported speech
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Statements, questions and commands: difference among say, ask, tell

Reported Statements
Direct speech: "I like ice cream"

Reported speech: She says she likes ice cream
Reported Questions
Direct speech: "Where do you live?"

Reported speech: She asked me where I lived.
Reported Requests
Direct speech: "Close the window, please"
Or: "Could you close the window please?"

Or: "Would you mind closing the window please?"
Reported speech: She asked me to close the window.
Reported Orders
Direct speech: "Sit down!"
Reported speech: She told me to sit down.
explanation
exercises
mixed tense reported statements exercise
Present Simple Reported Yes/No Question Exercise
Present Simple Reported Wh Question Exercise
Mixed Tense Reported Question Exercise
Reported Requests and Orders Exercise

Indirect and embedded questions: know, wonder
Do you know what he said?
I wondered what he would do next.
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Question tags
Remember: I'm right, aren't I?
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