I would like to speak English freely without worrying about grammar or pronunciation.
I would like to have a class time in which we intentionally speak English without caring about grammar or pronunciation.
ご質問ありがとうございます。
① "I would like to speak English freely"＝「英語を自由に話したいです」
"without worrying about grammar or pronunciation."＝「文法や発音を心配せずに」
② "I would like to have a class time"＝「授業の時間が欲しいです」
"in which we intentionally speak English without caring about grammar or pronunciation."＝「文法や発音を気にせずにあえて英語を話す（時間を）。」
ご参考に。
アメリカ合衆国 
