Breakdown of Na caixa foi que eu guardei o martelinho e a ferramenta.
eu
I
e
and
em
in / on / at
a caixa
the box
Questions & Answers about Na caixa foi que eu guardei o martelinho e a ferramenta.
Why is it foi que instead of é que in this sentence?
How does foi que change the emphasis compared to a normal sentence structure?
Why use guardei instead of guardava here?
The verb guardei is a single, completed past action. If you used guardava, the ongoing past tense, it would change the meaning to say that you used to keep or habitually kept them in the box.
What is the base word for martelinho?
The base word is martelo, which means hammer. The -inho suffix is a diminutive, so martelinho specifically means a small or little hammer.