Question

presente y pasado progresivo estructura auxiliares ejemplos interrogativo afirmativo negativo

Answer 1

Presente progresivo. 

Se forma con el verbo to be en presente y el verbo conjugado + ing.  Ejemplo con Read

Afirmativo                   Negativo                          Interrogativo
I am reading                 I am not reading              Am I reading?
You are reading           You are not reading         Are you reading?
He is reading                He is not  reading           Is he reading? 
She is reading              she is not  reading          is she reading? 
We are reading            We are not reading         Are we reading?
You are reading           You are not  reading       Are you reading?
They are reading        They are not  reading      Are they reading?

Contracciones   are not  = aren´t     ej Your aren´t reading.....
                          is not = isn´t            ej She isn´t reading.......

Pasado progresivo
Se forma con el pasado del verbo to be + verbo conjugado con ING

Afirmativo                     Negativo                            Interrogativo
I was reading                  I was not reading               Was I reading?
You were reading           Your were not reading       Were you reading?
He was reading              He was not reading            Was he reading?
She was reading             She was not reading          Was she reading?
We were reading            We were not reading          Were we reading? 
You were reading          You were not reading         Were you reading? 
They were reading        They were not reading       Were they reading?

Contracciones    was not = wasn´t        ej. She wasn´t reading 
                           were not = weren´t     ej. They weren´t reading.