›to make someone give you exact details or a firm decision about something: nail sb down on sthWe've been trying to nail them down on the specific points of the agreement for the past six months.nail sb down to sthThings are getting urgent so we need to nail them down to a delivery date.
In London but at the station: prepositions for talking about travel
by Liz Walter,
September 02, 2015
Several readers have asked for information on prepositions, so I will start with a blog post that looks at an area where they are really important: travel. The first thing to remember is that we use to (and not ‘in’) after the verb go: We are going to London. I went to