Question

formula para negar con ing y realiza 2 oraciones con cada pronombre donde se emplee 

Answer 1

formula: verb 'to be' +not + otro verbo cualquiera +ing
_I am not working today because it's holiday
_I am not playing soccer tonight

_you are not going to the concert (abreviado: you aren´t going....
_you are not singing tomorrow

_he is not eating his breakfast (abreviado: he isn´t eating...
_he is not writing a letter

....