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general::
Phrase(s): I don’t have time to catch my breath. [and] I don’t have time to breathe.
Fig. I am very busy.; I have been very busy. • Henry: I’m so busy these days. I don’t have time to catch my breath. Rachel: Oh, I know what you mean. • Sue: Would you mind finishing this for me? Bill: Sorry, Sue. I’m busy. I don’t have time to breathe.
McGrawhill's American Idioms And Phrasal Verbs