Learn Spanish (Latin America): Hicimos la maleta rápido, pero perdimos el avión. - We packed the suitcase fast, but missed the airplane.

In Spanish, the phrase for "to pack a suitcase" is hacer la maleta (literally "to make the suitcase"). Since hacer (to do/make) is highly irregular in the past tense, its stem changes to an "i", making the "we" form hicimos.

Can I use rápidamente instead of rápido here?

Yes, you can! However, in everyday Spanish, it is very common to just use the adjective rápido as an adverb to mean "fast" or "quickly". It works exactly like the English phrase "we packed fast".

Doesn't perdimos usually mean "we lost"?

It does! The verb perder means "to lose", but when you use it with forms of public transportation like a flight (el avión), a train, or a bus, it means "to miss".

Is perdimos an irregular past tense verb like hicimos?

No, perder is completely regular in the preterite (past) tense. For regular -er verbs, the "we" ending is -imos. So, dropping the -er from perder and adding -imos gives us perdimos.