-, Catch, yet
......... haven't/hasn't caught............ yet
already, build
......... have/ has already built........
-, do, yet
........ haven't/hasn't done........ yet
drive, for/ since two hours
........ has/have driven for two hours
I, Just, speak
I have just spoken with....
already, sing
......... has/have already sung ..........
just, swim
...... have/has just swum ......
already, write
......... have/has already written ..........
I, know, my best friend for/since, last year
I have known my best friend since last year.
Ben, Work, at the library, for/since January
Ben has worked at the library since January.
walk, for/since forty minutes
........... have walked for forty minutes
-, call, for/since six months
.............. hasn´t/ haven´t called for six months
-, see, for/since last Tuesday
....... haven't/hasn't seen ......... since last Tuesday
live, for/since, 2004
..... have/has lived ....... since 2004
-, eat, yet
....... haven´t/hasn´t eaten ......... yet
teach, for/since 1980
.........have/has taught ....... since 1980
