Question

nu inteleg la 2. eu stiu ca :
Present perfect este un timp ce nu stim cand a avut loc.
past perfect este un timp care a inceput inaintea unei alte actiuni .
Va rog sa-mi verificati si s-a m-a corectati si explicati
​

Answer 1

my mother has cleaned  

she has already been twice there

we haven't (have not) been hearing  from him -- ai uitat de negatie

he has been teaching

principala ta problema e ca faci acordurile pentru verbul de "a avea" (to have)

she has been listening to music the whole day-- din  trecut pana acum

she had been listening to music the whole day-- din trecut pana intr-un anumit punct

present perfect si past simple fac parte din punctele mele forte cand vine vorba de teorie ,asa ca scuza-ma daca am gresit