work (for) three days and work (in) the graveyard shift

[ansonguy]

I am going to make up two sentences below.

(1) I am going work (for) three days this week.

(2) I don't like to work (in) the graveyard shift.

Some of my friends and I think you don't the prepositions because the sentences sound better without them. What is your opinion? Thanks.

 

[J&K Tutoring]

1. Okay to leave out for, but you do need to before work: I am going to work three days this week.

There's a slight inference that "work for three days" means I will work three days in a row, while "work three days" can mean any three days- consecutive or not.

2. Okay to leave out the preposition. If you do want to leave it in, it should be on, IMHO.
a. I don't like to work the graveyard shift. I don't like working the graveyard shift.
b. I don't like to work on the graveyard shift. I don't like working on the graveyard shift.