Modal Auxiliary

Modal auxiliary, merupakan kata bantu yang berhubungan dengan perasaan dan pengandaian. Dapat digunakan untuk semua subyek, baik tunggal maupun jamak. Tanpa mengalami perubahan bentuk.

Macam-macam modal auxiliary :
A Will
be going to akan
B Can
be able to bisa, sanggup
C May
have permission to boleh, meminta izin
D Might
possibility mungkin, kemungkinan
E Should
ought to sebaiknya, seharusnya
F Must
have to harus, musti, pasti.
( Bisa digunakan untuk kal present dan future. )
G Could
be able to bolehkah

Will
Will digunakan untuk menyatakan :
kegiatan yang akan terjadi
Contoh : I will go to Semarang tomorrow
kemauan
Contoh : I will help you
kebenaran abadi
Contoh : Stone will sink in the water
permintaan secara halus
Contoh : Will you come in please ?
janji atau tekad yang akan dilakukan
Contoh : I will ask her if I see her
Bentuk umum penggunaan will
Subject + will + verb + object + complement
Will + subject + verb + object + complement ?
Contoh:
He will be here at 6:00 (future only)
Will you please pass the salt ?
Can
Can dapat digunakan untuk menyatakan :
kesanggupan atau kemahiran seseorang
Contoh : he can lift the big box
menyatakan izin
Contoh : you can go home now
menyatakan kemungkinan

Bentuk umum dari can adalah :
1. Subject + can + be + complementary (adj, noun, adv)
Contoh :
We can be clever.
You can be sick.
They can be present.
2. Subject + can + verb + object
Contoh :
We can speak english.
You can see me tomorrow.
They can finish the work on time.
May
May digunakan untuk menyatakan :
permintaan dan izin
suatu kemungkinan
penolakan izin untu melakukan sesuatu jika digunakan dalam kaimat negatif
Contoh : the students may not smoke in te class
mendoakan kondisi sesorang atau sesuatu
1. May + subject + verb + object + complement
Contoh:
May i see the picture now ?.
May we visit you tommorow ?.
May the join the meeting ?.
2. Subject + May + verb + object (memberi ijin)
Contoh:
You may leave the room.
They may join the meeting.
Might
Might digunakan untuk :
kalimat tidak langsung
kemungkinan yang lebih lemah dari may
Contoh : she might come last night
izin yang lebih halus dari may
Contoh : might I know your name ?
Bentuk umum penggunaan might :
Subject + Might + verb + complement
Contoh:
Linda goes to that bulding every morning. She might be a worker there.
Boby wants to buy a book. He might go to a bookstore.
Burhan is not at home. He might go to his office.
Should
Should digunakan untuk menyatakan :
perintah yang tidak terlaksana
Contoh : you should have recieved my letter
anjuran atau nasehat
Contoh : we should take a rest
kemungkinan yang tidak terjadi
Contoh : we should obey our parents
Bentuk umum dari penggunaan should :
Subject + Should + verb + complement
Contoh:
She should do well on the test.
The lady should take medicine and rest.
Must
Must digunakan untuk menyatakan :
suatu keharusan
Contoh : I must do my homework
kemungkinan yang kuat
sutu larangan, digunakan apabila digunakan dalam kalimat negatif
Contoh : she musn't do that
Subject + Must + verb + object + complement
Example:
Rio is from Indonesian. She must speak indonesian well.
Jenny can play piano well. She must practice a lot.
Mr. Will has many companies. He must be rich.
Might
Might digunakan untuk :
kalimat tidak langsung
kemungkinan yang lebih lemah dari may
Contoh : she might come last night
izin yang lebih halus dari may
Contoh : might I know your name ?
Bentuk umum penggunaan might :
Subject + Might + verb + complement
Contoh:
Linda goes to that bulding every morning. She might be a worker there.
Boby wants to buy a book. He might go to a bookstore.
Burhan is not at home. He might go to his office.
Could
Could digunakan untuk menyatakan :
kemampuan dimasa lampau
Contoh : he could play volleyball when he was young
permintaan izin yang lebih formal
Contoh : could you helpme for a momment ?
kemungkinan yang ada namun belum diputuskan
Contoh : you could meet him in his home or his office
Bentuk umum dari could :
Subject + Could + verb
Kata kerja could dapat diganti dengan mengunakan kata to be + able to untuk menyatakan usaha keras untuk memperoleh sesuatu.
Contoh : I am able to pay him

sumber : http://student.eepis-its.edu/~bay/UTS/could.htm