I have been to Japan three times before.

I contacted him beforehand.

The government declared a state of emergency to prevent the spread of the new coronavirus.

Prepositions are an important part of grammar.

I placed the materials before the important meeting.

I had a great time with my friends at the eve festival.

An abnormality was found in the preoperative examination.

He made some preliminary statements before getting to the main topic.

Please submit this report in advance.

The sumo wrestler ties his mawashi (the front part of the belt) tightly before the match.