Present Simple
Present Continous
100

Chodzę do sklepu codziennie.

I walk to the shop every day.

100

Jem teraz obiad.

I'm eating dinner now.

200
Słońce zachodzi na zachodzie.

The sun sets at West. 

200

Czy ona idzie do banku w tej chwili?

Is she going to the bank at the moment?

300

Każdego tygodnia uczniowie robią MEL-a ;) 

Every week students do MEL. 

300

Uczymy się jeździć samochodem.

We are learning to drive.

400

Czy ona chodzi na angielski co poniedziałek?

Does she go to the English classes every Monday?

400

Give an example of present continuous for actions happening AROUND now. 

I am staying in the hotel (only for vacation, not forver)

500

Nienawidzę czytać wieczorami, ale często czytam rano.

I hate reading in the evenings but I often read in the morning. 

500

Is this correct?

She is understaning Maths.

No

Understand, know, love, like, hate have got NO ING ending ;)