Collocations for nightmare - noun

awful, horrible, terrible, terrifying
vivid
recurring

have, suffer, suffer from
wake from, wake up from
give sb
The movie gave me nightmares.

haunt
The faces of all the people he had killed haunted his nightmares.

haunt sb, plague sb

nightmare about
I have nightmares about drowning.

awful, horrible, real, terrible
absolute, complete, total
ultimate, worst
Losing a child is my worst nightmare.

personal
living
The refugees had survived a living nightmare.

long
administrative, bureaucratic, financial (esp. BrE), logistical, etc.

endure, face, live, suffer, survive
become, prove (esp. BrE), turn into
Their dream of living in the country turned into a nightmare.

create
escape, escape from
relive

be over
come true

scenario, vision
the nightmare scenario of mass unemployment
The writer evokes a nightmare vision of a future on a polluted planet.

world
journey (esp. BrE)