YOU SAID:
the purple man's pants we blue and yellow polka dotted.
INTO JAPANESE
紫の男のパンツは青と黄色の水玉が点在しています。
BACK INTO ENGLISH
The purple man's pants are dotted with blue and yellow polka dots.
INTO JAPANESE
紫の男のパンツには、青と黄色の水玉が点在しています。
BACK INTO ENGLISH
The purple man's pants are dotted with blue and yellow polka dots.
You've done this before, haven't you.