on

he (for animate nouns), it (for inanimate nouns)

by

• Particle

  forms the conditional mood; would, would've

• Conj

chciał

third-person singular masculine past of chcieć

żebyśmy

Combined form of żeby + -śmy

czekali

third-person plural masculine personal past of czekać

tysiąc

1. thousand
2. Russian Schnapsen

lat

1. genitive plural of lata (“years”)
2. genitive plural of lato