simple present:

Para conjugar el presente simple usamos el infinitivo para los sujetos “I”, “you”, “we” y “they” y para las terceras personas “he”, “she” y “it”, añadimos un “-s” al final del verbo.

Example:


Afirmativas

I work on saturdays                       

He has a nice computer   

Negativas:

I do not work on saturdays.                

He doesn't have a nice computer.  

Iterrogativas:

Does she read the newspaper every day?

Do we come to school by bus?

always, usually, often, sometimes, hardly ever, never, generally, ocacasionally, once in a while, every
now and the, realy.
every day, every wek, every month, every year,  every other day, every weekend, every suday, monday, tuesday, wednesday, thursday, friday, saturday, on sunday, mondays, tuesdays, wednesdays, thursdays, fridays, saturdays, on weekends, once/two times/three times a days, a week, a moment, a year

para mas informacion vicite aqui:

http://www.curso-ingles.com/aprender/cursos/nivel-basico/verb-tenses-present/present-simple