shop \shop\, v. i. imp.  p. p. shopped; p. pr.  vb. n.
   shopping.
   to visit shops for the purpose of purchasing goods.
   1913 webster

         he was engaged with his mother and some ladies to go
         shopping.                                --byron.
   1913 webster
see also:
shopped shopping 

shop
     n 1: a mercantile establishment for the retail sale of goods or
          services; "he bought it at a shop on cape cod" syn: store
     2: small workplace where handcrafts or manufacturing are done
        syn: workshop
     3: a course of instruction in a trade as carpentry or
        electricity; "i built a birdhouse in shop" syn: shop
        class
     v 1: do one's shopping; "she goes shopping every friday"
     2: do one's shopping at; do business with; be a customer or
        client of syn: patronize, patronise, shop at, buy
        at, frequent, sponsor ant: boycott, boycott
     3: shop around; not necessarily buying; "i don't need help, i'm
        just browsing" syn: browse
     4: give away information about somebody; "he told on his
        classmate who had cheated on the exam" syn: denounce, tell
        on, betray, give away, rat, grass, shit, snitch,
         stag
     also: shopping, shopped
see also:
store workshop shop class patronize patronise shop at 
buy at frequent sponsor boycott browse 
denounce tell on betray give away rat 
grass shit snitch stag shopping 
shopped 

shopped
     see shop
see also:
shop