posted by jessy .
My grandmother happily presented the family heirloom at the wedding.
In this sentence i believe heirloom is the direct object, presented is the verb but i need to know what the subject modifier is and is happily an adverb that describes presented?
Yes, "heirloom" is the direct object and "presented" is the verb.
The possessive pronoun "My" modifies the subject.
And -- "happily" is an adverb describing "presented."