A preposition is a word that is placed before a noun or noun equivalent to show its relation to some other word in the sentence.
Some present or past participles such as considering, concerning, regarding, pending, notwithstanding, etc. are used as prepositions known as Participle Prepositions.

Examples of Participle Prepositions
- Considering your age, I pardon you.
- Concerning yesterday’s fire, I know nothing.
- Do you know anything regarding his landed property?
- Notwithstanding his father’s anger, the boy did this.
- Pending further orders, Mr Chand will act as the principal.
- Regarding this case, I can do nothing.
- The river flows past the room.
Miscellaneous Examples of Participle Prepositions
- Barring (excepting, apart from that): Barring accidents, the train will arrive on time.
- Concerning (about): Concerning his success, people are saying different kinds of things.
- Considering (taking into account): Considering the quality of the saree, its price is not too high.
- During: Hitler tortured the Jews greatly, during the Second World War.
- Notwithstanding (in spite of ): Notwithstanding his denial, the police arrested him for the crime.
- Pending (a period till ): Pending any fresh instruction, he will be in charge of the school.
- Regarding (about): Regarding your application, we regret to say that the post has been filled.
- Respecting (in respect of): Respecting your plan we have to say that it would be extremely expensive to implement it.
- Past: The railway line runs past the village.
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Also, Read

Preposition

Prepositions of Location

Figures of Speech

Conjunctions
