That method seems to work for simple verb trains but not more complicated 
sentences:

   tstr =: '* ,: 2&[EMAIL PROTECTED]'
   3 4 5 (;:tstr)`:6 (7 2 4)
|domain error
|   3 4 5    (;:tstr)`:6(7 2 4)

If I rewrite as simple train:
      tstr =: '* ,: 2: + ]'
   3 4 5 (;:tstr)`:6 (7 2 4)
21 8 20
 9 4  6

But that might get a bit unwieldy as the sentence gets more complicated. Is 
there a more general method?

---Henry Rich wrote:
>    tstr =: '* ,: +'
>    (;:tstr)`:6
> * ,: +
> +-+--+-+
> |*|,:|+|
> +-+--+-+
>    3 4 5 (;:tstr)`:6 (7 2 4)
> 21 8 20
> 10 6  9
>
> Henry Rich
>
---Sherlock, Ric wrote:

> > For some tacit sentence eg:
> >    (* ,: +)
> >    3 4 5 (* ,: +) 7 2 4
> > 21 8 20
> > 10 6  9
> >
> > Defined as a literal string eg:
> >    tstr=: '(* ,: +)'
> >
> > How can I create a named (preferably tacit) verb?
> > The only thing I've been able to come up with is:
> >
> >    texp=: 4 : 0
> >    ". 'x ',tstr,' y'
> > )
> >    3 4 5 texp 7 2 4
> > 21 8 20
> > 10 6  9
> >
> > I have an uncomfortable feeling that there is simple and
> > elegant solution but my mind is numb!!
> >
> ----------------------------------------------------------------------
> > For information about J forums see
> > http://www.jsoftware.com/forums.htm
>
> ----------------------------------------------------------------------
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