Interrogative pronoun pote (when?) in the Gospels-Acts

(Translation from NRSV with a few modifications for a more literal meaning)

Matthew

17: 17Jesus answered, "You faithless and perverse generation, until when (pote) must I be with you? Until when (pote) must I put up with you? Bring him here to me."
24: 3When (pote) he was sitting on the Mount of Olives, the disciples came to him privately, saying, "Tell us, when (pote) will this be, and what will be the sign of your coming and of the end of the age?"
25: 37Then the righteous will answer him, 'Lord, when (pote) was it that we saw you hungry and gave you food, or thirsty and gave you something to drink?
25: 38And when (pote) was it that we saw you a stranger and welcomed you, or naked and gave you clothing?
25: 39And when (pote) was it that we saw you sick or in prison and visited you?'
25: 44Then they also will answer, 'Lord, when (pote) was it that we saw you hungry or thirsty or a stranger or naked or sick or in prison, and did not take care of you?'

Mark

9: 19He answered them, "You faithless generation, until when (pote) must I be among you? How much longer must I put up with you? Bring him to me."
13: 4"Tell us, when (pote) will this be, and what will be the sign that all these things are about to be accomplished?"
13: 33Beware, keep alert; for you do not know when (pote) the time will come.
13: 35Therefore, keep awake - for you do not know when (pote) the master of the house will come, in the evening, or at midnight, or at cockcrow, or at dawn,

Luke

9: 41Jesus answered, "You faithless and perverse generation, until when (pote) must I be with you and bear with you? Bring your son here."
12: 36be like those who are waiting for their master when (pote) he returns from the wedding banquet, so that they may open the door for him as soon as he comes and knocks.
17: 20Once Jesus was asked by the Pharisees when (pote) the kingdom of God was coming, and he answered, "The kingdom of God is not coming with things that can be observed;
21: 7They asked him, "Teacher, when (pote) will this be, and what will be the sign that this is about to take place?"

John

6: 25Finding him on the other side of the sea, they said to him, "Rabbi, when (pote) did you come here?"
10: 24So the Jews gathered around him and said to him, "Until when (pote) will you keep us in suspense? If you are the Messiah, tell us plainly."