grammar · neutral
Only if + present simple, will + V
When 'Only if' starts a sentence to mean 'only when', the main clause often inverts auxiliary + subject for emphasis (e.g., Only if X will Y).
Examples
“Only if you study hard will you pass the exam.”
“Only if the data are reliable will the researchers publish the results.”
“Only if parents support reading at home will children develop lifelong habits.”
Band 8 sentence
“Only if policymakers address structural poverty will many long-term social problems be reduced.”
Collocations
- Only if + clause, auxiliary + subject + V
- Only if + emphasis
Common mistakes
Only if you study hard you will pass the exam.→Only if you study hard will you pass the exam.
If only you study hard, you will pass.→Only if you study hard will you pass the exam.
Say it for a higher band
5If only + clause (confused)→6If + present simple, will + V→7+Only if + present simple, will + V
Easily confused
If only + past perfect
“If only I had known about the deadline.”
Related words
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In Conditionals
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