1. Parts of Speech: Structure Classes13
Parts of Speech:
Structure Classes

2. A structure class has three characteristics:
1-Members of a given structure class are recognized mainly by position, as thy have no characteristics of from in do not change form.
2-A structure class is small.
3-A structure class has a stable membership and is a closed class.

3. The dinner was______ good.
A. Qualifiers
The qualifier occurs in the position just before an adjectival or an ad-verbial as shown:
The dinner was______ good.
She performed_______ skillfully.
The function of a qualifier is to modify; and the word following the qualifier is called the head.

4. Exercise 13-1 Aj Av aj

5. B. Prepositions
Prepositions are words like of, in, and to witch are usually followed by a noun, noun phrase, personal pronoun, or noun- substitute called the object.
e.g.
Examples: George sat between the two deans.
English has a small group of prepositions:
1-These one-syllable preposi-tions.
Examples: He came with the girl.

6. Exercise 13-4
obj
obj no
obj
obj
obj
obj
obj
obj
obj

7. B. Prepositions 2-Two-syllable ones, such as about, before.
Some of these words we have been dealing with can be either preposi-tions or adverbials. Compare:
Preposition: She looked up the stairs.
Adverbial: She looked up.

8. Exercise 13-6

9. 3-group of –ing prepositions assuming, beginning.
B. Prepositions
3-group of –ing prepositions assuming, beginning.
Exercise 13-7

10. 4-compound prepositions. Together with on account of
B. Prepositions
4-compound prepositions.
e.g.
Together with on account of
Exercise 13-8

11. C. Determiners
A determiner is a word that patterns with a noun It precedes the noun and serves as a signal that a noun soon to follow.
If the non is proceeded by adjectives and nouns, the determiner precedes these modifiers.
Examples: The new gymnasium.
Six of determiners --- his, John's, this, that, these, those--- may also be used in place of a noun as noun substitutes.
Examples: That will be enough.
I prefer Elizabeth's.

12. Exercise 13-9 D Ns d

13. D.Auxiliaries
Auxiliaries are closely associated with the verb and are of 3 kinds. The first kind is called modal auxiliaries such as :can, could, may , might, shall, should ,will ,would ,must ,ought The modal auxiliaries are bound together as a group by 2 characteristics of form: (1)The present tense form does not take an–s in the third person singular. (2)They do not have participle forms , present or past.

14. The second kind of auxiliary is the two primary auxiliaries ,have and be. The third kind of auxiliary is the periphrastic auxiliary Do.

15. Exercise:13-11

16. Exercise:13-12
1.PA
2.MA
3.P
4.MA
5.PA