What is the meaning of Być?

to be, to exist

to be [with nominative or instrumental]

to be [with adjective]

in future tense, forms the compound future tense of imperfective verbs [with infinitive]

in present tense, forms the compound past tense [with past participle]

in past tense, forms the pluperfect tense [with past participle]

in aorist, forms the conditional mood [with past participle]

to be (indicates sameness or membership in a class) [with nominative or instrumental]

to be (auxilary verb used for predication) [with adjective]

forms the future tense of imperfective verbs [with infinitive or past-tense clause]

forms the pluperfect tense [with past-tense clause]

to be, there be (indicates location)

Synonym of spędzać

to be [with nominative or instrumental]

to be [with adjective]

in future tense, forms future tense of imperfective verbs [with infinitive or past-tense clause]

in past tense, forms pluperfect tense [with past-tense clause]

to be

forms compound past tense [with l-participle]

Source: wiktionary.org