Posting, in case someone has the same doubt-
Quote:
Dear Mike,
In the above explanation, you have given the framework when "Had" alone will be working as complete verb.
Framework:
had" + [noun] + "past participle of verb
Quote:
While children’s programming had once been limited to a few hours a week, at least four cable networks are now dedicated
So, in the above sentence, what is the function of "HAd". Is it working alone as verb or as past perfect tense. the confusion arises because "once" is not a noun but an adverb.
Please clarify.
Thank You.
Dear Himanshu,
For some reasons, as I was typing, the post ceased to exist. Here's the response to your question.
An adverb, especially the adverb "not", often comes between the words of a multi-word verb --- between the auxiliary verbs and the main verbs. That's precisely what is happening in the sentence you quote ---- the main verb is "had .... been limited", broken up by the adverb "once". Again, this is very typical --- adverbs inserted between the words of a multi-word verb.
(1) The President has not been informed of the crisis.
(2) The ambassador would finally meet his Chinese counterpart.
Some people consider this construction in poor taste: while it's often unavoidable with the word "not", as in #1, some would argue that, when it is avoidable, the sentence should be re-arranged to avoid this. These purists would re-write #2 as: The ambassador finally would meet his Chinese counterpart. This is not a strict rule of grammar, but as a general pattern, the GMAT tends to follow this guideline on correct GMAT SC answers. In and of itself, this would NEVER be the deciding split of a GMAT SC question --- it's too subtle. The word "not" always comes after the first auxiliary verb, and this is true for any auxiliary verb.
He has not come.
He had not come.
He would not come.
He did not come.
He should not come.
He would not come.
He may not come.
etc.
That's a quite standard and ordinary construction in English, although, as I say, some purists question it if the adverb is something other than "not."
The other construction, much rarer, somewhat more colloquial, and not particularly likely to find on the GMAT, is [verb] + [object] + [adjective].
The blow knocked him unconscious.
The news made me excited.
The police chief had the suspects arrested.
This is a very different structure from the first. The confusion arises because of the tricky verb "has/had", which can function either as an auxiliary verb or as a full-fledged independent verb with a multitude of meanings. It's very important to distinguish whether the word between "had" and a participle is an adverb or a noun.
Does all this make sense?
Mike