Decision -MOQCHI BO'L-

One of the constructions used to express decision, "verb-MOQCHI BO'L-", is formed with the verb stem plus the suffix -MOQCHI, followed by the auxiliary verb bo'l- (root meaning: 'to be, become'), which can in turn be conjugated like any verb for tense/aspect meanings.

With the verb kelmoq, 'to come':

kelmoqchi bo'ldimI decided to come
kelmoqchi bo'ldingYou decided to come
kelmoqchi bo'ldiHe/she/it decided to come
kelmoqchi bo'ldikWe decided to come
kelmoqchi bo'ldingizYou decided to come
kelmoqchi bo'ldi / bo'ldilarThey decided to come

The negative is formed by adding the negative suffix -MA to the auxiliary verb bo'l-, which means that no decision is taken.

kelmoqchi bo'lmadimI didn't decide to come
kelmoqchi bo'lmadingYou didn't decide to come
kelmoqchi bo'lmadiHe/she/it didn't decide to come
kelmoqchi bo'lmadikWe didn't decide to come
kelmoqchi bo'lmadingizYou didn't decide to come
kelmoqchi bo'lmadi / bo'lmadilarThey didn't decide to come