Grammatik

Hej 

Jeg har haft lidt svært ved følgende spørgsmål og håber i kan hjælpe mig.

Question 1: In the following sentence, identify the heads and any related determiners, pre-modifiers, and post-modifiers in the noun phrases in the sentence (there are four NPs (Noun Phrases) at various levels).

A pensioner has described the moment she found an aircraft crash landed in her back garden. 

Min svar er følgende, hvor jeg har inddelt de fire NPs med []. Er det korrekt? (H = head). 

- [A (determiner) pensioner (H) has described (postmodifier)] [the moment (H) she found (postmodifier)] [an aircraft (H) crash landed] [in (Premodifier) her (determiner) back (Premodifier) garden (H)].

Question 2: In the following sentence, why is the definite article used in Cessna 172 but not in Rochester Airport?

The Cessna 172 crashed outside the couple's home in Folkestone, Kent after taking off from Rochester Airport yesterday. 

Mit forslag er:

It's "The Cessna 172" because there is more than one, and it's referring to a specific Cessna 172, whereas there is only one Rochster Airport and, therefore, there is no need to add a definite article. 

Question 3: Why is the plural form of the verb used in were investigating in the following sentence?

It is not yet known what caused the crash but the Air Accidents Investigation Branch were last night investigating the possible causes.? 

Den er jeg faktisk lidt usikker på, men her mit svar:

Because "the Air Accidents Investigation Branch" doesn't have a plural form and in most cases it considers more larger group of people, when saying a branch. 

På forhånd tak!