G4894–συνείδω–suneidō

and kept back [supplied: part] of the price, his wife also being privy to it, and brought a certain part, and laid it at the apostles' feet.

συνειδυίης suneiduiēs “already being aware”

And when he had considered [supplied: the thing], he came to the house of Mary the mother of John whose surname was Mark; where many were gathered together and were praying.

συνιδών sunidōn “Having considered [it]”

they became aware of it, and fled unto the cities of Lycaonia, Lystra and Derbe, and the region round about:

συνιδόντες sunidontes “having become aware”