Questions & Answers about Я положил запасной кабель в сумку на всякий случай.
Russian has no articles, so it does not use separate words for a/an or the.
So:
- запасной кабель can mean a spare cable or the spare cable
- в сумку can mean into a bag or into the bag
Which one is meant depends on context. This is very normal in Russian.
Положил is the past tense, masculine singular form of положить.
It tells you that:
- the action happened in the past
- the subject is one person
- that person is grammatically masculine
So if the speaker is male, Я положил means I put / I placed.
If the speaker were female, it would be:
- Я положила
If it were we, it would be:
- Мы положили