preliminary round

I enter the preliminary round.

私は予選に出ます

I enter the swimming preliminary round.

私は水泳の予選に出ます

I enter the swimming preliminary round at the school pool.

私は学校のプールで水泳の予選に出ます

I enter the swimming preliminary round at the school pool this Saturday.

私は今週の土曜日に学校のプールで水泳の予選に出ます

I enter the swimming preliminary round at the school pool with my friend this Saturday.

私は友達と今週の土曜日に学校のプールで水泳の予選に出ます