Present Continuous настоящее продолженное время, выражает действие, которое происходит в настоящий момент. формула такая: подлежащее глагол to be +ing форма
например: My sister is playing now. My sister is not playing now. Is sister playing now?
Present Simple вырожает действие, которое происходит в настоящем постоянно и переодически.
например: We often go to school together. We do not go to school together. Do we go to school together?