Spoliehali by ste sa predovsetkym asi na ten kontext hlavne. Pripadne mozete
pouzit priebehovy tvar, cize I can't be waiting for them (any
longer).
Na WordReference bola podobna otazka zodpovedana nasledovne:
I think we can distinguish three different situations.
If we are very eager for something, we say ‘I can't wait!’ meaning
‘I want it now!’.
If we must leave immediately and cannot stay for a meal, we say, for
example, ‘I'm sorry, I can't wait for dinner, I have to go now’.
If we cannot accept an arrangement which would involve a delay, perhaps a
repeated delay, we say ‘I can't be waiting’. For example, a parent
says to a child: ‘You must be ready at 8.00 o'clock for me to take you to
school. I have to go straight on to work and I can't be waiting
for you.’
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