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Perhaps this question should have been asked on ELL, but I will try here and move there if fail here.

There are verbs (currently I've found rest, walk and another one I'd better not cite) which can be used also with a verb have (and take) and respective noun (e.g. rest - have a rest etc). So basically what is the difference here:

rest - have a rest, take a rest
walk - have a walk

marked as duplicate by Chenmunka, tchrist, Andrew Leach Aug 14 '15 at 12:32

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    "I need to rest", "I need a rest", and "I need to take a rest" mean the same thing. One would not normally say "I need to have a rest", but it's perfectly well understood, and, oddly, it would be fairly natural to say to a companion "Why don't you have a rest while I go scope out the XXX." – Hot Licks Aug 14 '15 at 12:27
  • @Hot Licks It depends on which side of the Atlantic one lives on. – Edwin Ashworth Aug 14 '15 at 13:24
  • @Hot Licks, Edwin: It's more a matter of age than which side of the pond! Wait 'til you guys get old and decrepit, then tell me One would not normally say "I need to have a rest" (I sometimes need to have a rest before I can muster the energy to stir my first cup of coffee in the morning! :) Also note that the evidence is one would not normally say I need to take a rest (where have there is far more common). – FumbleFingers Aug 14 '15 at 13:45
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    @FumbleFingers - I am old and decrepit, and I wouldn't say "I need to have a rest" because it takes too much breath to say. – Hot Licks Aug 14 '15 at 16:14

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