What is the meaning of бꙑти?

to be

1. Used to form the perfect tense.
2. Used to form the pluperfect tense.
3. Used to form the future perfect tense.
4. Used to form the conditional mood.

Used to form the perfect tense.

Used to form the pluperfect tense.

Used to form the future perfect tense.

Used to form the conditional mood.

to be

With the l-participle, used to form the past tense.

to have to

to be

Source: wiktionary.org