present simple - I work at the high school. She works in a shoe shop.
present contiuous - I am not workingtomorrow.
The correct tense is the one that is appropriate for what you are saying.
Infinitive
Present tense: work/works/working Past tense: worked. Future tense: will work.
I, you, we, they work. She, he, it works.
The past tense is worked. The present tense is work/works/working.
It is present tense.
The present tense of work is work (I work, you work, he works, she works, it works, we work they work). The present continuous - am/is/are working; the present perfect - have/has worked; the present perfect continuous - have/has been working.
Worked is the past tense of work. Present tense forms of work are: work / works / working
"You are" is present tense, happening now,, while "sat" is past tense. so this sentence doesn't work. :" You are sitting writing this," although awkward is correct.
Present tense.
The present tense of follow is:I/You/We/They follow.He/She/It follows.The present participle is following.
It is work/works.
Present tense - clean. Past tense - cleaned. Present tense - work. Past tense - worked. Present tense - play. Past tense - played.