Sorry I didn't give you a hug this morning before you went to school.
Sorry mommy didn't give you a hug or say good-bye this morning when you left for school.
この場合、次のような言い方ができますよ。
ーSorry I didn't give you a hug this morning before you went to school.
「今朝学校に行く前にハグできなくてごめんね」
to give someone a hug で「人にハグをする」
ーSorry mommy didn't give you a hug or say good-bye this morning when you left for school.
「今朝学校に行くとき、ハグも行ってらっしゃいも言えなくてごめんね」
このような言い方もできます。
ご参考まで！
カナダ 
