On 2015-10-17, Brian <a...@cityscape.co.uk> wrote: >> >> The use of 'do' in that way suggests emphasis. If you wanted that >> emphasis, a more unambiguous way is >> >> If in doubt, *install* this package >> >> If the emphasis is unnecessary, just leave out the the 'do'. > > The sentence is unambiguous (there no word "not" in it); it has a hint > of instruction in it but is perfectly good English as it stands. Leaving > out "do" is still good English but is more requesting or invitational. > >
I find the 'do' rather chummy myself. "If you're in the neighborhood, do stop by."
