I have
Já mám
You have (informal, singular)
Ty máš
He/she has
On/ona má
We have
My máme
You have (formal, plural)
Vy máte
They have
Oni mají
I do not have
Já nemám
You do not have (informal, singular)
Ty nemáš
He/she does not have
On/oni nemá
We do not have
My nemáme
You do not have (formal, plural)
Vy nemáte
They do not have
On a nemají