Can someone check these sentences, please? I thank you in advance.

1) Lady Macbeth "becomes sleepwalking"
2) Cowardice is the ability to bear the sorrows of our life and to stay alive, while courage is facing death by committing suicide
3) We can't be sure about afterlife.
A series of metaphors is used to describe sleep
4) Lady M. notices Macbeth has brought the daggers with him (or has mistakenly taken the daggers from the murder scene?)
5) Regarding time, Macbeth wonders whether time is preordained or the result of human activity.

Please explain what your assignment is.