Re: 3304 P1 Qns

Stephen Edwards (edwards@CS.VT.EDU)
Wed, 14 Feb 2001 16:17:41 -0500

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Message-ID:  <3A8AF5F5.4898A94@cs.vt.edu>
Date:         Wed, 14 Feb 2001 16:17:41 -0500
From: Stephen Edwards <edwards@CS.VT.EDU>
Subject:      Re: 3304 P1 Qns

Toby Vaught wrote:

> Is there going to be at most one adverb
> following a verb in a legitimate verb phrase?

The BNF answers this unambiguously. There may be only one adverb.

> For example, if there is a
> verb followed by two adverbs, should it be an invalid sentence?

Yes.

> The second
> question is whether it is possible to have an adverb followed by a verb.

Again, the BNF answers this unambiguously (as you conclude in your
other comments, which I've deleted here). The adverb may only follow
the verb.

Always interpret the BNF literally--if it isn't in there, then it
can't appear in legitimate ("grammatically correct") sentences.
This is always true of BNF in general.

                                -- Steve

--
Stephen Edwards            604 McBryde Hall          Dept. of Computer Science
e-mail      : edwards@cs.vt.edu           U.S. mail: Virginia Tech (VPI&SU)
office phone: (540)-231-5723                         Blacksburg, VA  24061-0106
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