Correct conjugations of verbs in this sentence?
Algunos días dormía mucho y otros días me desperté temprano y caminé los perros
English: Some days I slept a lot and other days I woke up early and walked the dogs
3 Answers
If this is something that you did over a period of time, I would recommend the imperfect of both verbs, i.e.,
Algunos días dormía mucho y otros días me despertaba temprano y paseaba a los perros.
In English this would also work out to:
Some days I would (or used to) sleep a lot, and other days I would (or used to) walk the dogs.
(Atten: English learners. "Would" can also be used to translate the tiempo imperfecto. No es solamente para el condicional).
This is my take , but I am only intermediate and we both need a Spanish native speaker
one will mosey along soon I am sure .
Hay días en que dormían mucho y otros días me desperté temprano y caminaron los perros.
Some days I slept a lot and other days I woke up early and walked the dogs.

If you meant to say particular completed actions in the past, use the indefinite form for dormir, which is dormí.
To end, walk the dog = pasear al perro. It's not idiomatic to say caminé los perros.