conditionals

​The second conditional is a structure used to talk about impossible or imaginary situations.

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​To form the second conditional we use: If+past simple and would+infinitive

​It is not important which clause is first.

​If it's a nice day tomorrow, we'll go swimming. – THIS SITUATION IS POSSIBLE.

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​If I weren't/wasn't at work, I'd be on the beach. – THIS SITUATION IS IMAGINARY – the speaker is at work.

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Many conditional sentences use if + will/would. However conditional sentences can also use other words instead of 'if' – 'when' 'as soon as' 'in case'. Other modal verbs can be used instead of 'will/would' –  'can/could', 'may' 'might'.