一番よく使われている表現はwe are openです。
"We are open"はお店などの現在の運営時間を表しています。 "We are opened"はよく使われる表現とは言えませんが、文脈によって意味が変わる場合があります。
Yes, we are open today.
Our expectations are modest, but we are open and optimistic.
We have made this policy a major contributor to Plan D, and we are open to working further with you on it.
We are open to reducing the time gap but it is important to have an agreement with Member States so that they act more or less at the same time in order to avoid these problems of distortion of competition in the internal market.
Mr President, the fact that the European Parliament is discussing development in relation to the question of migration shows that we are open to the problems of developing countries.
Here in the European Parliament, we would like to continue to have the grounds and the conviction for declaring that we are open to the European aspirations of the Ukrainians.
Okay, folks, looks like we are open for business.
Yet we are open to dialogue, as this is what the millions of inhabitants of our countries want.
Ladies and gentlemen, we are open to dialogue and debate, but can only pass judgment on actions rather than fine speeches.
She will not be scared off, because we are open and honest with each other about everything.
Why are we being opened so early again?
We are opened by the love of other human beings--in our hearts and minds.
We are opened up to an audit since we didn't file taxes for the last five years!
When we are opened, we will let you know.
Do you know when we are opened to cross-examination?
We were first opened in 1967.
We are opened whenever the first customers arrive in the morning.
Did you say we were opened up last Saturday?