Persuade, encourage, welcome.
The word "invited" is the past participle of invite.
The one word for a person who has not been invited is the gatecrasher.
No, it is not an adverb. Invitation is a noun.
The word invited is a verb. It is the past tense of the verb invite.
inquire, query, question, interrogate, examine, directions, quiz
I was invited to my friend's birthday party.
It was difficult to figure out which were the invited guests and which were not.
When trying to find the solution to a grammar question, the trick is to figure out if the word you are using is a singular word or a plural word, The word "couple" is a singular word - you have one couple. Therefore, you would say "The couple was pleased to be invited."
You are cordially invited to answer this question.
Guest.
I want to invite you out for a drink. Were you invited to the wedding?
To answer your question I have to ask another question, What is the evidence that you have been invited? We need more information.