1.- his kids have not read any books
since last summer
2.- I have had an English dictionary for
four years
3.- we have not bought a book in a
bookshop for a long time
4.- sheila has been in bed since
yesterday
5.- mike has not passed a reading test
since last year
6.- my friends have not watched a film
for three months
ever = alguna vez
Has she ever watched a star wars film?
just
has he just played basket?
¿acaba de jugar él al baloncesto?
yet = ya / todavía (negativas e
interrogativas)
no he acabado todavía = I have not
finished yet
¿ya lo has enviado? = have you sent it
yet?