A/ AN ACTION IN THE PAST LASTING UP TO NOW AND CERTAINLY HAPPEN IN THE...

2/ - NGU PHAP TIENG ANH 8UNIT 1UNIT 8 2/ - NGU PHAP TIENG ANH 8UNIT 1UNIT 8
NGU PHAP TIENG ANH 8UNIT 1UNIT 8

2/Uses:

a/ An action in the past lasting up to now and certainly happen in the future .

Ex :They have been studying French since 1998

b/A recently finished action with obvious result at present

Ex :She has been working with her computer for hours so her eyes are burnt .

c/To emphasize the duration of an action and the action occupied a period time in the past ( all

day, all....)

Ex:Mary has been learning cooking all day

d/ An action lasting up to the present

Ex:Lan has been waiting for Tuan for 4 hours

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The present perfect tense

I/ Form

S+ have/ has+ V( past participle)

II/ Adverbs of time

+,Since , ever, never, for , just .

+,Ready, lately , recently, ( after have / has or at the end of the sentence )

+,Yet( in negative or yes-no question )

+,So far , up to now, up to present , since then ...

+,In recent years , this month , for / during the last few years ..

III/ Uses