Time-Specific: Represents state/condition of one time period.
Past Forms
Forms: “was”, “were”
Usage:
Descriptions in the past: He was a teacher, we were very happy.
Future Forms
Forms: “will be”, “shall be”
Usage: To be discussed during tenses section.
Detailed Examples
Present Tense: “is”, “am”, “are”
I am a teacher.
You are a student.
We are Pakistani.
Emotional Conditions: I am happy, I am sad, I am sorry.
Usage Rules
“Am”: Used with “I”
“Is”: Used with singular subjects (persons, things, places)
Examples: Lahore is a big city, He is a lawyer, She is a doctor.
“Are”: Used with plural subjects
Examples: Lahore and Karachi are big cities, You are learning freelancing.
Forming Negatives
Structure: Add “not” after “is”, “am”, “are”.
Examples: He is not a doctor, We are not Pakistani, I am not a pilot.
Additional Notes
Sources: The phrase "you are learning from a good source" indicates the importance of identifying the source of learning.
Summary: “Is”, “am”, and “are” indicate who someone is or what something is, and can also form negatives by adding "not". This can help identify who/what someone/something is not.