
| Byť | To be | Zápor | Skrátený tvar |
| Ja som bol | I was | I was not | I wasn´t |
| Ty si bol | you were | you were not | you weren´t |
| On bol | he was | he was not | he wasn´t |
| Ona bola | she was | she was not | she wasn´t |
| Ono bolo | it was | it was not | it wasn´t |
| My sme boli | we were | we were not | we weren´t |
| Vy ste boli | you were | you were not | you weren´t |
| Oni/ony boli | they were | they were not | they weren´t |
Príklady:
1. Včera som bola v meste.
I was in the city yesterday.
2. Minulý týždeň bola Jana chorá.
Jane was ill last week.
3. Nebol tam.
He wasn´t there.
4. Boli ste v kine?
Were you in the cinema?