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Use "heartbrokenly" in a sentence
"A shout -- it was a hoarse, inarticulate cry; a swift, maddened scrutiny that searched the sodden scene of the ambush; then he was down beside the mare, calling her name heartbrokenly, his arms around her neck, his face against her warm, wet, velvet hide."
"She winds up the chat some of the girls are sobbing heartbrokenly telling them they have to go home - but luckily they're actually already home, and the pipe and drape suddenly reveal that they're actually inside the model house."
"Basically it told him he/she was "heartbrokenly sorry for his complaint" and could he please send another e-mail with details of the problem."