Adjective Clause

who : sebagai pengganti subject (orang)
contoh
- the boy is my cousin
- the broke my car
the boy who broke my car is my cousin.

whom : sebagai pengganti object (orang)
contoh
- the foreigner come from uk
- i had conversation with him
the foreigner whom i had conversation come from uk.

whose : sebagai ganti kepemilikan (benda dan orang)
contoh
- we visited my uncle
- this house is in the will
we visited my uncle whose house is in the hill.

which : sebagai pengganti subject dan object (benda)
contoh
- the cat is funny
- it is sleeping under the chair
the cat which is sleeping under the chair is funny.

why : sebagai alasan
contoh
give me are good reason why tou did that

when : sebagai pengganti waktu
contoh
this is the year when the olimpic games are held

where : sebagai pengganti tempat
contoh
here is the house where i live.

that : sebagai pengganti untuk all human dan non human
contoh
saya rasa anda sudah tau contohnya.

Possibility
1. could
2. may
3. might

Advisable
1. had better
2. oughtto
3. should
 
Intantion
1. shall
2. will

Necessity
1. must
2. have to
 
Past habit
1. would

Modal past events
1. should
2. must
3. could
4. might
(modal+have+V3)