Which grammar book claims that, and what exactly does it say.
I questioned the sentence "Finishing the work, I went home in a hurry" to the author of my grammar book to ask for the reference, and the author answered like this. It's a long answer.
To summarize the answer:
1. “What follows ‘after’ or ‘before’ is not a participle but a gerund” (Participle phrases cannot be preceded by ‘after’ or ‘before’).
2. Using ‘after’ or ‘before’ changes the meaning.
That seems to be about it.
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A:
https://www.quickanddirtytips.com/qdtarchive/participles-and-gerunds/
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When using before or after, you are using prepositions, so the word following them must function as a noun. Because of this, you will always use a gerund (-ing form). [1, 2, 3]
The Core Rule
Prepositions (including before and after) are followed by gerunds, not participles. [1]
Incorrect: Before left (participle)
Correct: Before leaving (gerund)
How to Use Them
1. Gerunds (Action Nouns)
Use a gerund when the subject of both clauses is the same, as it serves as the object of the preposition. [1]
Structure: Before/After + Gerund (-ing) + Main Clause
Example: Before leaving the house, I always lock the door.
Example: She went for a walk after finishing her work. [1]
footnotes:
[1]:
https://www.quickanddirtytips.com/qdtarchive/participles-and-gerunds/
[2]:
https://forum.wordreference.com/thr...-preposition-or-due-to-a-part-clause.2977233/
[3]:
https://www.bbc.co.uk/learningenglish/features/ask_bbc_learning_english/250508
_____________________
B:
Do you know how to use participle clauses to say information in a more economical way? Test what you know with interactive exercises and read the explanation to help you.
learnenglish.britishcouncil.org
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Using before or after with participle forms (often called "participle clauses") is a great way to make your writing more concise and advanced. You can use present participles (-ing) or perfect participles (having + past participle) to show the exact sequence of events. [1, 2, 3]
1. After + Perfect Participle (\(having + \text{past participle}\))
This structure emphasizes that the first action is completely finished before the main action begins. [1, 2]
Active: After having finished their training, they will be fully qualified doctors.
Passive: After having been made redundant, she started looking for a new job.
Shorter version: You can often drop the word "after" and just use the perfect participle: Having eaten authentic tacos, Andrew stopped enjoying Taco Bell. [1, 2]
2. Before + Present Participle (\(-\text{ing}\))
This structure shows that one action happens before another, or that an action occurs while interrupting another timeline. [1, 2, 3]
Example 1: Before leaving the house, make sure to lock the doors.
Example 2: Before taking everything into consideration, we decided to sell the house.
Example 3 (Passive meaning): Before being promoted, she was the head of the marketing department. [1]
Two Crucial Rules to Remember
Shared Subject: The subject of the participle clause must be the exact same as the subject of the main clause.
Correct: Before signing the contract, I read the terms carefully.
Incorrect (Dangling Participle): Before signing the contract, the terms were read by me.
Punctuation: When the participle clause comes before the main clause, always separate them with a comma. [1, 2, 3, 4]
Participle clauses | LearnEnglish - British Council
Perfect participle clauses show that the action they describ...
Learn English Online | British Council
Participial Phrases: How They Work, With Examples | Grammarly
2023. 11. 13. — A perfect participle phrase includes the auxiliary verb have...
Grammarly
Participle clauses - BBC World Service | Learning English | Learn it
After taking everything into consideration, we decided to se...
[1]:
https://www.bbc.co.uk/learningenglish/features/ask_bbc_learning_english/250508
[2]:
https://learnenglish.britishcouncil.org/free-resources/grammar/c1/participle-clauses
[3]:
https://ielts.idp.com/nepal/about/news-and-articles/article-participle-clauses
[4]:
https://owl.purdue.edu/owl/general_..._participles_and_infinitives/participles.html