Comparative (daha) and superlative (en)

Turkish has two degrees of comparison. The comparative expresses that one thing has more (or less) of a quality than another — equivalent to English -er or more …. The superlative expresses the highest degree within a group — equivalent to English the most …. Turkish forms both degrees analytically: it places a particle (daha or en) directly before the adjective. The adjective itself never changes its form.

• Comparing two things (comparative). Use daha before the adjective when you want to say that X is more … than Y. The thing being compared against (the standard) takes the ablative suffix -den / -dan / -ten / -tan.

• Expressing "less" (comparative). Replace daha with daha az before the adjective. Do not negate the adjective itself.

• Dropping daha. When an ablative standard is already present in the sentence, daha is optional and is frequently omitted in everyday speech.

• Ranking within a group (superlative). Use en before the adjective when something is at the top of its class. The group or scope is typically expressed with a genitive construction or a locative phrase.

The ablative suffix on the standard of comparison follows standard vowel harmony and consonant mutation rules. The table below shows the core patterns.

• Forgetting the ablative on the standard. The standard of comparison must carry the ablative suffix. Ali Ayşe daha uzun is incorrect. The correct form is Ali Ayşe'den daha uzun.

• Placing daha after the adjective. daha must come immediately before the adjective, not after it. Ali uzun daha is wrong; write Ali daha uzun.

• Negating the adjective to express "less". "Less interesting" is daha az ilginç, not a negated adjective. Negating the adjective changes the meaning entirely.

• Treating daha as obligatory. When an ablative standard is present, daha is often omitted in natural speech. ondan ucuz (cheaper than that) is perfectly correct without daha.