2 - ADVERB / Present Perfect

A menudo en el Presente Perfecto se usa con estos adverbios:

recently (recientemente,  aux y verbo), -I haven´t recently balanced the pieces of the machine.

lately (últimamente,  aux y verbo),  Have you been exercising lately? = ¿Has estado ejercitandote ultimamente? PRESENTE PERFECTO CONTINUO


so far (hasta aquí, por ahora),  (principio o final)  -Scientists haven't found a cure for cancer So far.

up to now (hasta ahora), (principio o final)  -I´ve toked to my family on the phone up to now.  



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(?)  ever (alguna vez,   aux y verbo)  -Have you ever arrived late?

(+) never (nunca,    aux y verbo) -I have never invested in sctok market.

(+) already (ya,    aux y verbo) -It has already started.


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(?) yet (ya)  (al final)  -Have you purchased the book yet ? 

(-) yet (aún)  (al final)    -I Haven´t purchased it yet.

just (acaba de,   aux y verbo)  -He has just made a cake.

(-) still   (todavía,  antes del verbo aux)- I still haven‘t invited you