Pada sebuah adjective clause banyak mengandung ekpresi dari quantity (jumlah) seperti:

• some of
• one of
• many of
• most of
• none of
• two of
• half of
• both of
• neither of
• each of
• all of
• several of
• a few of
• little of
• a number of
• ect

Conjungction-nya menggunakan
whom untuk person
which untuk non person
whose + Noun untuk keduanya
Contoh:
Di kelasku ada 20 murid. Banyak dari mereka dari Jakarta
In my class there are 20 students. Most of them are from Jakarta
Jadi:

In my class there are 20 students, most of whom are from Jakarta.

Adejective Clause : most of whom are from Jakarta
conjunction : most of whom

Note: Menggunakan ekpresi quantity selalu di awali atau di apit koma

Macam-Macam dari penggunaan ekpresi quantity

a. penggunaan ekpresi quantity mirip RPS
b. penggunaan ekpresi quantity mirip RPO

a. penggunaan ekpresi quantity mirip RPS

Pola :
RPS Noun + Conjunction + V
UQ Noun + Conjunction + V
Contoh :
Saya menikahi 2 gadis. Salah satu dari mereka gemuk.
I married 2 girls. One of them is fat.
Jadi :

I married 2 girls, one of whom is fat.

he gave several problems. Only a few of them were valid.
Jadi:

he gave several problems, only a few of which were valid.

The teacher discussed Dian. One of her problems was poor study habits.
Jadi:

The teacher discussed Dian, one of whose problems was poor study habits .

b. penggunaan ekpresi quantity mirip RPO

Pola:
RPO : Noun + Conjunction + S + Vt
UQ : Noun + Conjunction + S + Vt

Contoh:
Jhon menikahi 2 wanita. Jim mencintai salah satu dari mereka,
Jhon married 2 women. Jim loved one of them.
Jadi:

Jhon married 2 women, one of whom Jim loved.

Conjunction : one of whom
Subject : Jim
Verb: Loved
Sub Clause: one of whom Jim loved

Banyak gadis menemuiku. Saya melihat beberapa dari mereka.
Many girls met me. I saw some of them.
Jadi:

Many girls, some of whom i saw

Sumber:
Understanding and using english (Betty S.A)