MODALS IN THE PAST FROM

Yayaya .. yes, yes, yes ..
aha, what is the meaning of this topic?
ok guys, if most of us do not know, let's discuss together here. :) 
Modals in the Past form in the Indonesian language is the word auxiliary modality in the past tense.
 

Modals in the past are :
1. Could
2. Would
3. Should
4. Shall

1.Could + Verb base
We can use this expression : to offer suggestion or possibilities.
Example :
Dhina : I’m having trouble with chemistry.
Rizki : Why don’t you ask Mr. angga ?
Perhaps he could help you.

2.Might + Verb base
Use might to tell possibillities.
Example :
Helda : Why is Rio taking the bus to get home.
Fany : He might get a flat time.

3.Would + verb base
Use would for an action that was repeated regulary in the past.
Example :
Yoan : What did you usually do on holidays ?
Lia : I would visit my grandparents In the village, but how not anymore.

4.Would + Mind + V-ing
Use would to express polite request.
Example :
Mrs. Lady : Would you mind posting the letter ?
Nita : No, Not at all.

5.Should + Verb base
Example :
Nisa : Ima , you should go to school now ?
Ima : O.k.