Ever, Never, Since and For
The Present Perfect is also used to all these other particles:
Ever (which translates as ever, on occasion) normally
in questions like ...
Have you ever Been to London? (¿Has estado alguna vez en Londres?)
Have you ever eaten sushi? (¿Has comido sushi en alguna ocasión?)
Never (which translates as ever)
I have never met anyone famous. (Nunca he conocido a nadie famoso.)
We have never seen a ghost. (Nunca hemos visto un fantasma.)
Since: it means in Spanish "in a" talking time. It refers to an action that began on a specific point in the past, yet is still carried out at present.
For instance.
Yo he vivido en España desde hace 23 años. - I have lived in Spain since 23 years.
MarÃa ha sido mi novia desde hace 8 meses.- Mary has-been 8 months since my girlfriend.
For meaning in Spanish "For" or "for" some time given. It is used to discuss a specific time, a time duration in which it has engaged in action.
For instance.
Yo he vivido en Guadalajara por 5 años. - I have lived in Guadalajara for 5 years
Mi mamá ha trabajado en Chiapas por 6 meses. - My mother has worked in Chiapas for 6 months.