YOU SAID:

when he was doing lines and crossing all the lines

INTO JAPANESE

彼がラインをこなし、すべてのラインを横切っていたとき

BACK INTO ENGLISH

When he was doing the line and crossing all the lines

INTO JAPANESE

彼がラインをこなし、すべてのラインを横切っていたとき

BACK INTO ENGLISH

When he was doing the line and crossing all the lines