This mood is easily formed in all tenses just by inserting an -e- or -a- before the negative suffix of any negative verb whether it be active, passive, reflexive, reciprocal,or causative - (in effect we form a completely new verb - with its own infinitive):
bakmamak - to not look becomes: bakamamak - not to be able to look
bakamıyorum - I can't look
bakamadın or bakamıyordun - you could not look
bakamıyordu - he was not able to look
bakamazsak - if we cannot look - (Conditional form)
bakamayacaksınız - you will not be able to look
bakamadılar or bakamıyorlardı - they could not look
It can be seen above that the tense and personal endings are added to make the full verb form - this includes the "if" forms of the Conditional Mood.
çekmemek - to not pull becomes: çekememek - not to be able to pull
çekemem - I can't come
çekemiyorsun - you cannot pull
çekilemedi - it could not be pulled - (Passive form)
çekemeyeceğiz - we will not be able to pull
çekememiştiniz - you had not been able to pull
The buffer letter -y- is used to keep the last vowel of the verb stem separate from the -e- negative potential particle that has been added to the normal negative infinitive.
anlamamak - to understand becomes: anlayamamak - (anla-y-a-ma-mak)- not to be able to understand
anlayamadım - I could not understand
anlamasaydın - if you did not understand
anlayamasaydın - if you could not understand - (adding the Negative Potential)
anlayamamış - it seems he could not understand - (Inferential Tense)
anlaşılamayacaksak - if we will not be able to understood - (Passive form)
anlayamazsınız - you cannot understand
anlaşamadılar - they could not agree - [lit: understand each other] - (Reciprocal form)
beklemek - to wait, expect - becomes: bekleyememek - (bekle-y-e-memek) - not to be able to wait
bekleyemesem - if I cannot wait - (Conditional tense)
bekletemeyeceksin - you will not be able to let (it/him) wait - (Causative form)
beklenemedi - it could not have been expected - [lit: awaited] - (Passive form)
bekleyemeyeceğiz - we will not be able to wait
bekleyemezdiniz - you couldn't have waited
bekleyememişler - it seems that they could not wait - (Inferential tense)
In speech this negative potential particle -a- (-ya-) or -e- (-ye-) is heavily accented in order to draw the attention of the listener.