When there is a sense of urgency, we often say "there's no time to lose". But there are numerous other phrases to convey this message. Some of them might include "hurry up", "the clock is ticking", "time is of the essence", "no time to waste", "don't dawdle", "time is running out", "quickly" or "swiftly". Sometimes, we might use idiomatic expressions like "make haste", "get cracking" or "hit the ground running" to establish the urgency of the situation. These alternative phrases can add variety to our communication and convey a sense of urgency to people with different levels of English comprehension skills.