The Uses Of The Verb "be"

The verb be has the following forms:
 

Present Simple	Affirmative	I am You are He/She/It is	We are You are They are
	Question From	Am I? Are you? Is he/she it?	Are we? Are you? Are they?
	Negative:	I am not/ I’m not You are not/ aren’t He/She/It is not/ isn’t	We are not/aren’t You are not/aren’t They are not/aren't
Past simple		I was You were He/She/It was	We were You were They were
The past              participle:		been.
Present perfect:		has/have been
Past perfect:		had been

The verb be is used in the following patterns:
1. with a noun:

    My mother is a teacher.
    Bill Clinton was the president of the US.

2. with an adjective:

    This soup is very tasty.
    The children were good.

2.1 with the -ing form to make the continuous aspect

      We were walking down the street.
      Everything was wet. It had been raining for hours.

2.2 with the -ed form to make the passive voice

      The house was built in 1890.
      The street is called Montagu Street.
      This car was made in Japan.

3. with a prepositional phrase:

    John and his wife are from Manchester.
    The flowers are on the table.