THE PRESENT TENSE
SIMPLE PRESENT
In English, it is very easy to use nouns correctly. A noun generally has only one form and the plural is generally formed by adding 's'.
But the verbs are more difficult.
In English, unlike most other languages, the present tense has three different forms and is used to express several different concepts.
It is very important to understand the variations in the uses of the present tense.
1. SIMPLE PRESENT
I think, you think, he,she, it thinks, we think, you think, they think.
2. CONTINUOUS PRESENT
I am thinking, you are thinking, he/she is thinking, we are thinking, you are thinking, they are thinking
3a. INTERROGATIVE
(asking questions)
Do I think?
Do you think?
Does she think?
3.b. NEGATIVE FORM
I don't think.
You don't think.
She doesn't think.
3.c. EMPHATIC FORM
I do think that I am right.
You do think that I am right, don't you?
She really does think that the English class is at three o'clock.