Teaching Zone
The use of the tense:
Action happen regularly 
e.g. I always eat fruits after dinner. General truth 
e.g. Water boils at 100°C. Thoughts, feelings and opinions 
e.g. I guess she is sick.
The form of the tense:
- With the verb be, we form positive and negative sentences as below:
| Subject | be (is/ am/ are) | |
|---|---|---|
| I | am | a student. |
| am not (‘m not) | a teacher. | |
| You | are | my good friend. |
| are not (aren’t) | my enemy. | |
| He/ She/ It | is | very smart. |
| is not (isn’t) | stupid. | |
| We/ You/ They | are | from Hong Kong |
| are not ( aren’t ) | from America. | |