Questions & Answers about Сегодня я работаю дома продуктивно и спокойно.
Russian doesn’t use a separate verb like to be in the present tense for actions.
- я работаю literally means “I work / I am working”.
- The ending -ю on работаю already shows:
- person: 1st person
- number: singular
- tense: present
- aspect: imperfective
So Russian doesn’t need a word like am; the verb ending carries that information. Context decides whether you understand it as I work (general) or I am working (right now).