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Modality Review

B1

Modality

1. Function

Modal structures express the speaker’s evaluation of an action.


They indicate:


  • necessity

  • obligation

  • possibility or ability

  • lack of necessity


The action itself does not change.
The degree and source of necessity or possibility changes.


2. Forms

Modal meaning in Turkish appears in two structural types:


Verbal modal suffixes

  • –meli / –malı

  • –(y)ebil / –(y)abil


Nominal modal constructions

  • infinitive + gerek / gerekmez

  • infinitive + zorunda / zorunda değil


3. Morphology


A) –meli / –malı (necessity suffix)


Form:

verb stem + –meli / –malı + personal ending


Four-way vowel harmony applies.


a / ı group

  • yapmalıyım

  • yapmalısın

  • yapmalı

  • yapmalıyız

  • yapmalısınız

  • yapmalılar


e / i group

  • gelmeliyim

  • gelmelisin

  • gelmeli

  • gelmeliyiz

  • gelmelisiniz

  • gelmeliler


o / u group

  • olmalıyım

  • olmalısın

  • olmalı

  • olmalıyız

  • olmalısınız

  • olmalılar


ö / ü group

  • görmeliyim

  • görmelisin

  • görmeli

  • görmeliyiz

  • görmelisiniz

  • görmeliler


Negation (directly on the verb stem):

verb stem + –me / –ma + –meli / –malı


  • gitmemeliyim

  • gelmemelisin

  • yapmamalı


B) –(y)ebil / –(y)abil (possibility / ability)


Affirmative form:

verb stem + (–y–) + –ebil / –abil + tense / person


  • yapabilirim

  • gelebilir

  • okuyabildi

  • konuşabilecek


Negative form (CRITICAL RULE):

In negative ability, –ebil drops.


Form:

verb stem + –A–m– + tense / person


  • yapamam

  • gelemeyiz

  • okuyamadı

  • konuşamayacak


This –A–m– sequence is a fixed negative-ability pattern.


C) gerek / gerekmez (nominal necessity)


Impersonal structure (general necessity)


Form:

verb stem + –mAk / –mEk (infinitive) + gerek / gerekmez


  • gitmek gerek

  • beklemek gerekmez


No personal reference.
The necessity is general or situational.


Personal structure (possessive verbal noun)

Form:

verb stem + –mA / –mE (verbal noun) + possessive ending + gerek / gerekmez


The possessive suffix attaches to the verbal noun, not to gerek.


  • gitmem gerek

  • gelmen gerek

  • çıkması gerek

  • konuşmamız gerek


Negation is part of the modal word:


  • gitmem gerekmez

  • gelmen gerekmez


D) zorunda / zorunda değil (external obligation)


Form:

verb stem + –mAk / –mEk (infinitive) + zorunda


  • çalışmak zorundayım

  • erken kalkmak zorunda

  • gitmek zorunda değilsin


Negation is expressed with değil, not with –mA.


4. Structural Guide

Modal meaning appears through three different mechanisms:


  1. Verbal suffixes
    –meli / –malı
    –(y)ebil / –(y)abil

  2. Negative ability
    verb stem + –A–m–

  3. Nominal predicates
    infinitive (–mAk) + gerek / zorunda
    verbal noun (–mA + possessive) + gerek


Negation follows structure-specific rules and must not be generalized.


5. Usage


–meli / –malı

Speaker-based, subjective necessity.
Advice, expectation, personal judgment.


gerek / gerekmez

Situational or practical necessity.
More neutral, less personal.


zorunda / zorunda değil

External obligation.
Rules, duties, no real alternative.


–(y)ebil / –A–m–

Possibility, ability, or limitation.

Examples


–meli / –malı

Erken kalkmalıyım.
— I must wake up early.


Daha dikkatli olmalısın.
— You should be more careful.


gerek / gerekmez

Bu raporu bugün bitirmem gerek.
— I need to finish this report today.


Şimdi çıkmam gerekmez.
— I don’t need to leave now.


zorunda / zorunda değil

Toplantıya katılmak zorundayım.
— I am obliged to attend the meeting.


Bugün çalışmak zorunda değilim.
— I don’t have to work today.


–(y)ebil / –A–m–

Yarın gelebilirim.
— I can come tomorrow.


Şimdi konuşamam.
— I can’t talk now.


Bu problemi çözemedik.
— We couldn’t solve this problem.


Same action, different modality

Gitmeliyim.
— Personal necessity.


Gitmem gerek.
— Situational necessity.


Gitmek zorundayım.
— External obligation.


Gidebilirim.
— Possibility.

Notes

  • Modal structures express degree and source, not time.

  • Impersonal necessity uses –mAk.

  • Personal necessity uses –mA + possessive.

  • Negative ability uses the –A–m– pattern.

  • Negation behaves differently across modal structures.

Modality Review – FAQ (B1)


Q: What do modal structures express in Turkish?
A: Modal structures express the speaker’s evaluation of an action. They show necessity, obligation, possibility, ability, or lack of necessity without changing the action itself.


Q: What is the difference between –meli / –malı and gerek / gerekmez?
A: –meli / –malı expresses speaker-based, subjective necessity such as advice or personal judgment. gerek / gerekmez expresses situational or practical necessity and is more neutral.


Q: How is negative ability formed with –(y)ebil?
A: In negative ability, the suffix –ebil drops completely. The verb uses the fixed –A–m– pattern, as in yapamam or gelemeyiz.

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