“主谓宾,主谓宾,and主谓宾.”这种句子会成为病句吗?用逗号隔开就行吗?

not at all ,but u can write it on easy way .
for example :he and tom are good boys and she is a good girl.
or :he and tom are good boys ,and she is a good girl.
my mother is a teacher ,my father is a doctor ,and my sister is a dancer.
my mother is a teacher ,my father is a doctor and my sister is a dancer.
u can use it freely.