The Present Simple Tense, also known as the Aorist Tense (Geniş Zaman), is used to express habitual actions, general truths, facts, polite requests, and sometimes future plans.

Suffix Formation:

The main suffix is -r, but it changes based on the verb stem:

• Verb stems ending in a vowel: Add -r.
  Example: oku- (read) → okur (reads)
• Most polysyllabic verb stems ending in a consonant: Add -ir / -ır / -ur / -ür (I-Type vowel harmony).
  Example: gönder- (send) → gönderir (sends); çalış- (work) → çalışır (works)
• Most monosyllabic verb stems ending in a consonant: Add -ar / -er (A-Type vowel harmony).
  Example: yap- (do) → yapar (does); sev- (love) → sever (loves)
• Irregular monosyllabic verbs: Some monosyllabic verbs take -ir/-ır/-ur/-ür (e.g., gelir, alır, verir, görür, olur, ölür, durur, bulur, kalır, sanır, varır, vurur, bilir). There are about 13 of these.

Conjugation (yapmak - to do):

Negation:

The negative is formed with -me/-ma + -z for 3rd person singular, and -me/-ma for other persons before their personal suffixes (1st person singular/plural negative is irregular: -mem/-mam, -meyiz/-mayız).

• Ben gelmem. (I don't come.)
• O gelmez. (He/She/It doesn't come.)