ever - just - yet - already - still (con presente perfecto)

- ever (preguntar si se ha hecho algo “alguna vez”?

Have you ever travelled to Miami?

- just (algo que acaba de ocurrir)

I have just eaten an apple

- yet =ya, aún, todavía  (interrogativas y negativas)

Have you  finished your homework yet?

I have not finished them yet.

already = ya (afirmativa)

You have already bought a pet

still = todavía

I have not still cooked biscuits.