How to Express Adjectives and Adverbs in American Sign Language
In English, a modifier can come before or after the word it’s modifying. However, in American Sign Language (ASL), you typically place the adjective or adverb — the modifier — after the word that it modifies. But sometimes in Sign, you may find yourself expressing the modifier at the same time you sign the word it modifies — just by using your face.
Your facial expressions can describe things and actions in ASL. For instance, if something is small or big, you can show the extent of it while you sign without actually signing small or big. Instead, use facial expressions.
For example, you can describe a small piece of thread by pursing your lips, blowing out a little air and closing your eyes halfway. If something is very thick, puff out your cheeks. You can convey that it’s raining hard or that a car is moving fast by moving your eyebrows or shaping your mouth a certain way.
The following examples give you a good idea of some of the different facial expressions you may use to get your point across when describing things in Sign:
Some adverbs used in English aren't usually used in Sign, such as the words very and really. You have to incorporate them into the verb by using facial expressions.

Language Phrases Glossary
accusative case
When noun or pronoun is the direct object of the verb of the sentence, you are required to switch to the accusative case ending.

Language Phrases Glossary
dative case
When noun or pronoun is the indirect object of the verb of the sentence, you are required to switch to the dative case ending.

Language Phrases Glossary
genitive case
When the noun or pronoun indicates possession, you are required switch to the genitive case ending.

Language Phrases Glossary
instrumental case
A Russian grammatical term that indicates that the noun or pronoun assist in the carrying out of an action, you are required to switch to the accusative case ending.

Language Phrases Glossary
interrogative
Words used to ask questions, such as who, what, when, where, and why.

Language Phrases Glossary
macron
A small, horizontal mark above the vowel that indicates a long vowel sound. Make the vowel sound like its name.

Language Phrases Glossary
nominative case
When noun or pronoun is the subject of the sentence, you are required to switch to the nominative case ending.

Language Phrases Glossary
prepositional case
A grammatical case that indicates that the noun or pronoun is the object of a preposition, you are required to switch to the accusative case ending. Used with the Russian prepositions: v (v; in), na (nah; on), o (oh; about), and ob (ohb; about).