Mastering vocabulary

• ISBN 13 : 9780842801805
• ISBN 10 : 0842801804
• Judul : Mastering vocabulary
• Pengarang : Vicki Tyler,  
• Kategori : Language Arts & Disciplines
• Penerbit : prentice hall
• Bahasa : en
• Tahun : 1988
• Halaman : 32
• Halaman : 32
• Google Book : http://books.google.co.id/books?id=8hibHZ7gCIYC&dq=intitle:mastering+tenses&hl=&source=gbs_api
• Ketersediaan :

Verbs have a present tense and a past tense. The past tense is usually formed by
adding -ed or -d. Many adjectives and some adverbs have -er and -est forms. The
dictionary does not list every plural noun, past tense verb, and -er and -est ...