What is another word for hadst a part in?
Pronunciation: [hˈadst ɐ pˈɑːt ˈɪn] (IPA) 
The phrase "hadst a part in" is a literary way of saying that someone was involved in a particular event or situation. Some possible synonyms for this phrase include "took part in," "participated in," "contributed to," "was involved in," "played a role in," "had a share in," "had a hand in," "had involvement in," or "was a party to." These different synonyms can help to convey slightly different nuances of meaning or emphasize different aspects of the person's involvement. Regardless of the wording used, though, the overarching idea is that the person played some kind of active role in the situation at hand.
