C1 · Lesson 15 · 30 min
Checkpoint: advanced grammar in use
In this lesson
- I can combine advanced structures without losing clear time, agency or logical connections.
- I can review emphasis and certainty while preserving the meaning of a message.
Grammar in context
Having inspected the venue, the organisers revised their plan. Only then did they realise that the original budget was too low. The exhibition is now expected to open in June. Much as they regret the delay, a shorter programme may well be more manageable.
Who inspected the venue? Which phrase triggers inversion? Which statements report expectations rather than proven future facts?
Check time and viewpoint first
When several advanced forms occur together, begin by identifying the time of each action and the speaker’s viewpoint. A perfect infinitive can place a reported event before a current belief. A perfect participle can place one action before another. A past form after would rather may concern a future preference instead of past time. Read the surrounding context before choosing a form, and make important time relationships explicit when more than one interpretation is possible.
- The files are believed to have been moved before the inspection.
- I would rather we discussed the findings tomorrow.
Control emphasis and clause structure
Fronting, clefts and inversion draw attention to selected information. They follow different patterns: an ordinary fronted object does not automatically trigger inversion, while a fronted negative or restrictive expression often does. An it-cleft highlights one constituent, and a what-cleft uses statement order within its what-clause. In a participle opening, make the understood subject clear. These checks prevent an elegant-looking structure from changing who acted or what the sentence means.
- What the team needed was a reliable estimate.
- Only after the estimate arrived did they confirm the booking.
Keep dense writing readable
Complex noun phrases and nominalisation can organise formal information, but the head noun still controls ordinary agreement and the responsible actor may need to be named. Ellipsis and substitution work only when the omitted reference is recoverable. Concession acknowledges a fact without accepting its expected result; hedging qualifies the writer’s commitment. Use these devices because they clarify a relationship, not simply to make every sentence sound advanced.
- The reduction in fees was approved by the trustees.
- The result may be promising, but the evidence covers only a small sample.
Common mistakes
Compare the incorrect and corrected forms.
Avoid
Having reviewed the figures, the error was obvious to us.
Use
Having reviewed the figures, we could see the error.
We reviewed the figures; we should be the main-clause subject.
Avoid
Only after the meeting ended we did understand the objection.
Use
Only after the meeting ended did we understand the objection.
The main clause needs auxiliary inversion after the fronted only after clause.
Put it into practice
Try the exercises, write your own examples and check your understanding.