Claudius (Hamlets Uncle) talks about Gertrude now being queen when she was always queen
"O, that this too too sullied flesh would melt, Thaw and resolve itself into a dew"
I will watch tonight, the ghost will come around again
Rosencrantz, Guildenstern & Horatio
We saw a ghost the other night my lord, we think it is your father
Hamlet keeping guard at night
"Your loves, as mine to you. Farewell. My father's spirit in arms! All is not well. I doubt some foul play. Would the night were come till then sit still, my soul. Foul deeds will rise, Through all the earth o'erwhelm them to mens eye"