Slide 2:
past simple finished action in a specific time in the past Time expressions:
yesterday, ago, last week,
in 1999 .....
Slide 3:
Since 1988 it has raised £ 337 million. - action started in the past with consequences in the present RND has made a difference to many people’s lives. - action in an undetermined time in the past have / has + past participle present perfect
Slide 4:
present perfect - action started in the past with consequences in the present - action in an undetermined time in the past have / has + past participle haven’t / hasn’t + past participle have / has + S + past participle?
Slide 5:
present perfect Time expressions: for (period of time - duration)
RND has helped people for years. since (specific time in the past)
RND has given people food since 1988 just (very recent action – agora mesmo)
RND has just begun a new campaign. already (affirmative, interrogative – já)
It has already helped many children. yet ( negative, end of sentence – ainda)
RND hasn’t started in Portugal yet.