“I will be there in a minute…”
Translates to let me finish whatever I am doing however long it takes!
“You can go on the Wii when you have played nicely with your brother for half an hour”
Translates to I will only remind you again whenever you stop playing nicely however long that may last…
“I will be back to check on you in 10 minutes (when settling youngest to sleep)”
Translates to if your quiet I will be checking in on you just before I go to bed however late that is!