The first person singular I+I+do+something.
The first person plural We+ is+doing+something.
The second person's name is You+are+doing +sth.
The third person singular he (she, it) +is+doing+sth.
The third person plural they+are+do+something now participle change rule 1. Directly +ing (for example, sleep+ing sleeping)
2. Go to e+ing (such as bite -e+ing bite)
3. Stress the closed syllable, with only 1 consonant at the end, and double the consonant +ing (such as sit+t+ing sitting).
4. Special changes: dying, lying, wearing a tie
5. Irregular change 1. Concept:
The act or state that occurred at a certain time in the past; Past habitual and regular actions and behaviors;
2. Adverbial of time:
Before (two hours ago, yesterday, the day before yesterday, last week, last year, night, month ...), the specific time, just now, the age of a certain day, a long time ago, once upon a time and so on.
3. Verb change rules:
Rule change:
Add ed directly,
Work-work,
For words ending in e, add d directly,
Make ~ make irregular changes:
Have/have had, eat-eat, look-look.
4. Basic structure:
Subject+verb past tense+others
5. Negative form:
Did+didn't do+did+others; 6. General questions:
Did+ subject +do+ others?
7. Example:
She often came to help us in those days.
I didn't know you were so busy.
Subject +be (indicating state) or subject+verb prototype+object (indicating action) 1. Expressing frequent or habitual actions, often used with adverbial of time indicating frequency.
(1) occurred at a specific time in the past, which can also indicate (2) past habitual actions. The general past tense does not affect the present, but only expresses the past.
[Edit this paragraph] Define the simple future tense, indicating the action or state at a certain moment in the future, or the frequent action or state in a certain period of time in the future. The future tense consists of auxiliary verbs shall (first person), will (second and third person)+verb prototype. Am/is/ plan+do.
Will/should+do it
(3)am/is/are+do (present continuous tense means future)
1) indicates a future action or state.
The general future tense is often used with adverbials indicating future time, such as:
Tomorrow, next week, from now on; In the future; One day (one day in the future) and so on.
2) indicates actions that will happen frequently in the future.