Yes, 'having had participated' is proper English.
Example: Having had participated in many singing competitions, I have become more confident in public.
Thanks to everyone who participated in this topic Thank you, everyone who participated in this topic I would like to thank everyone who participated in this topic any of the above, if I understood your meaning
"In" is probably more correct, unless the name of the event is a place-name. "I participated IN the Daytona 500", or "I raced AT Daytona."
English is a proper adjective.
The word English is not a proper noun when it is used as a proper adjective. That is an English accent, an English type automobile, an English looking top hat.
What is "do writing?" This does not appear to be proper English. If the question were rephrased in proper English, I think we would know how to answer it.
Not everyone here knows proper English. Others may be lazy and use chat speech. Then of course, some are just young. In addition, there is some debate as to what is proper English. Proper British English is not the same as proper American English. Other English-speaking nations have their own variations of English.
Well, for starters, your question is not proper english.
No, "irregardless" contains a double negative. "Regardless" is proper English, but "irregardless" is not.
No, it is not proper English to say "on tomorrow." The correct phrase is "tomorrow."
If you are in the tub bathing it would be proper to say: I am having a bath.If you are in the tub bathing it would be proper to say: I am having a bath.If you are in the tub bathing it would be proper to say: I am having a bath.If you are in the tub bathing it would be proper to say: I am having a bath.
It is a proper noun, used to the refer to "the English" (the English people) or to the language English. It is a proper adjective when used to refer to England or Great Britain.
Yes, the noun English is a proper noun, the name of a specific nationality and a specific language. A proper noun is the name of a specific person, place, or thing. The word English is also a proper adjective.