请问这四个单词词或词组分别是什么意思?请最好能举例说明.

sometimes 1.有时,间或,偶尔 2.从前
sometime
1.在某一时候
2.日后,有朝一日
3.有时
4.从前
5.从前的,昔日的
6.偶尔发生的
some time
1.相当长的时间 2.迟早,总有一天
some times 有时;偶尔
I love to swim,but sometimes I prefer to skate.
我喜欢游泳,但有时我更愿意滑冰
I hear you are very good at chess.I'd like to play with you sometime
听说你棋下得不错,很想什么时候和你交交手.
It was some time ago that she last met him.
她有一阵子没见到他了
My Brother carries things too far some times.
我弟弟有时会开玩笑开得过火.