This is the 12714th most frequent Turkish word.
inşaatını
"Construction of it."
The word 'inşaatını' is used as the accusative case of 'inşaat', meaning 'construction' and '-ını' indicates possession referring to 'its construction'.
Firma inşaatını zamanında tamamladı.
The company completed the construction on time.
Here, 'inşaatını' again refers to a specific 'construction', modified by 'komşu bina', indicating 'the construction of the neighboring building'.
Komşu binanın inşaatını dikkatle izledik.
We carefully observed the construction of the neighboring building.
In this sentence, 'inşaatını' represents 'the construction belonging to the school', emphasizing the monitoring action.