YOU SAID:

I go swimming on Sundays and do art at school on Tuesdays but on Tuesday I have to do maths as well

INTO JAPANESE

私は日曜日に水泳に行き、火曜日に学校でアートをしますが、火曜日にも私は数学をしなければなりません

BACK INTO ENGLISH

I go swimming on Sundays and do art at school on Tuesdays, but on Tuesdays I have to do math

INTO JAPANESE

私は日曜日に水泳に行き、火曜日に学校でアートをやりますが、火曜日に私は数学をしなければなりません

BACK INTO ENGLISH

I go swimming on Sundays and do art at school on Tuesdays, but on Tuesdays I have to do math