Turkish Past Simple Tense (-di / -dı / -du / -dü): Definite Past Explained

What is the Definite Past Tense? (Belirli Geçmiş Zaman)

The -di tense expresses past events that the speaker personally witnessed, knows with certainty, or experienced directly.

Suffix: -di, -dı, -du, -dü (or -ti, -tı, -tu, -tü after voiceless consonants).

Conjugation Table for gitmek (to go → stem: git-)

Notice the consonant mutation t + t → gitti:

Dialogue Example

• Aylin: Dün akşam ne yaptın? (What did you do yesterday evening?)
• Can: Arkadaşlarımla buluştum ve Türk kahvesi içtik. (I met with my friends and we drank Turkish coffee.)

Official TurkLogic Curriculum Reference Note

The Past Simple Tense, also known as the Definite Past or -di Past (Belirli Geçmiş Zaman), is used for actions completed in the past that were witnessed or are known for certain by the speaker.

Suffix Formation

The suffix is -dı / -di / -du / -dü following I-Type (4-way) vowel harmony, or -tı / -ti / -tu / -tü if the verb stem ends in a voiceless consonant (f, s, t, k, ç, ş, h, p — mnemonic: FıSTıKÇı ŞaHaP) due to consonant assimilation:

• gel- → geldi (came)
• yap- (ends in ‘p’) → yaptı (did)
• oku- → okudu (read)
• gör- → gördü (saw)

Conjugation (yapmak — to do)

Negation

The negative is formed by adding the negative suffix -me / -ma to the verb stem before the past tense suffix: -medi / -madı.

• Formula: Verb Stem + -me / -ma + -di / -dı + Personal Suffix
• Example: Ben yapmadım. (I didn’t do / I haven’t done.)