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Part 1 of 3
Use the Present Perfect for ongoing actions connected to the present ('Researchers have studied this species since 2010'). Use the Simple Past for completed past events ('The experiment ended in 2020').
Second Conditional: If + Past Simple, ... would + infinitive ('If climate changed further, species would adapt').
Worked example
'If soil moisture dropped significantly, plant growth would decrease.' Using 'dropped' and 'would decrease' correctly forms the second conditional.
1.The second conditional combines Past Simple in the if-clause with would + infinitive in the main clause.
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Why is this the correct answer?
Eliminate any option that contradicts something stated directly in the lesson, then check which one actually follows from the rule you just learned. Tell me which option confused you and I'll point to the exact line.
Exam strategy
If you can explain why the wrong answers are wrong, you know the topic. Remembering the right one only gets you halfway.
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