My father-in-law just died, and my mother-in-law has been in a bad mood for months. What can I do to convince her? I'm afraid she's more excited. What should I say?

I wonder what kind of personality your mother-in-law belongs to? It may be easier to understand her personality, for example, is she a quiet person or a talkative person? Did she do anything to distract her when she was in a bad mood? Because something she did was probably her way to vent her negative emotions.