Adjectives are used to modify nouns. Adverbs can modify verbs, adjectives and other adverbs, as well as other structures. In Turkish, some adverbs can be formed from adjectives by adding the suffix -CE after the adjective. Note that this is the same suffix that we used to construct the names of languages.

Noun	Adjective	Adverb	Meaning
-	yavaş	yavaşça	slowly
dikkat	dikkatli	dikkatlice	carefully, attentively, cautiously

Just adding -lİ to a noun to make it an adjective and then adding -CE to form an adverb seems really neat and easy to learn. Unfortunately, only part of the adverbs in Turkish are formed like this, and the rest of the adverbs in this lesson are formed differently. Often the -CE is dropped even if the word is used as an adverb.

Moreover, sometimes the adjective and the adverb are the same word, as is the case with hızlı.

Noun	Adjective	Adverb	Meaning
hız	hızlı	hızlı	fast, rapidly, speedily

Usages of henüz