G4856–συμφωνέω–sumphōneō

I also solemnly tell you that if two of you here on earth agree together concerning anything whatever that they shall ask, the boon will come to them from my Father who is in Heaven.

συμφωνήσωσιν sumphōnēsōsin “shall agree”

and having made an agreement with them for a shilling a day, sent them into his vineyard.

συμφωνήσας sumphōnēsas “Having agreed”

"`My friend,' he answered to one of them, `I am doing you no injustice. Did you not agree with me for a shilling?

συνεφώνησάς sunephōnēsas “you did agree with”

He also spoke in figurative language to them. "No one," He said, "tears a piece from a new garment to mend an old one. Otherwise he would not only spoil the new, but the patch from the new would not match the old.

συμφωνήσει sumphōnēsei “it will match”

"How was it," replied Peter, "that you two agreed to try an experiment upon the Spirit of the Lord? The men who have buried your husband are already at the door, and they will carry you out."

συνεφωνήθη sunephōnēthē “it was agreed together”

And this is in harmony with the language of the Prophets, which says:

συμφωνοῦσιν sumphōnousin “agree”