We have no meanings for "know when" in our records yet.
1 These times may include when you need to know when a service:
2 I know when you usually hear primal, you might think of animals.
3 Of course a nun wouldn't know when to let well enough alone.
4 However, you may need to know when to quit while you're ahead!
5 But he did ask me to let him know when you called.
6 A long time ago-wedon't know when - somebody - wedon'tknowwho-created the Archive.
7 I don't even know when we're going back to work, he said.
8 I know when I am good and when I am not good.
9 Investigators often know when and where the missing party was last seen.
10 With children, you never know when you're going to need a doctor.
11 You know when you first experience it when it's a great wine.
12 I'll let you know when the time is right to buy in.
13 Let me know when you've got all our new passengers safely in.
14 We'll let you know when he shows up at the press conference.
15 Does this describe anyone you know when they come home from school?
16 He'd talk to Hung, let me know when they had a plan.
Other examples for "know when"
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This collocation consists of: Know when through the time
Know when across language varieties