yes , i learn how ues articles a/an is used to modify non-specific or non-particular nouns .
*subject nouns (singular, plural, pronouns ) < And the use of each base of the these subject nouns .
*Contractions with BE , use Used in the merge in speaking and writing .
*Negative with BE ,The shortcut with the negative .
*BE + ADJECTIVES , An adjective is describe nouns or a pronoun .
*Yes/No question with Be , Short answers to Yes/No questions , If the answer is "Yes", we always use the long form.
Example: Yes, I am.
If the answer is "No", we either use the long or the contrated form (short form).
Example: No, I am not - No, I'm not.
*Some feeling vocabulary =) , A description of some of the images in word .
*Using Have and Has
have
Have is used with some pronouns and plural nouns:
'I have a great English teacher
has
Has is used with the third person singular.
'She has a great personality.

verb to be:
am take I
is come with she,he,it
are come with we,you,they