Examples of using "серьёзна" in a sentence and their english translations:
Be serious.
How serious is the problem?
I'm completely serious.
I'm being serious.
I'm dead serious.
- He is serious when he talks about his hobby.
- She is serious when she talks about her hobby.
"How serious is Tom's sickness?" - "We should fear the worst."
- You're not serious.
- You aren't serious.
I'm completely serious.
Please be serious.
I was serious.
- Get serious.
- Be serious.