I've lost my keys.
The losing happened before now; the present result is that the keys are missing.
Vipengele vya msingi
Soma sentensi kwa vipande vya maana, si neno kwa neno.
Connect the past to now for experience, results, changes, and unfinished time with have + past participle.
Present perfect = a bridge to now
PAST NOW
│ ●
│ still connected ▲
└────────── bridge ──────────┘
have/has + past participle
helper completed-action form
I've lost my keys.
past losing ───────────────► now: no keys
No bridge with a finished time stamp:
yesterday ●───────────────► now
I saw Maria yesterday.
not: I have seen Maria yesterday.
Use have/has + past participle when a past event is still connected to now; use past simple for a finished time like yesterday.
I've lost my keys.
The losing happened before now; the present result is that the keys are missing.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
She has visited Japan.
The exact time is not important; the experience is connected to now.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
We've lived here since 2020.
This is unfinished time: the living began in 2020 and still continues.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
They've already left.
Already helps show that the result is true now.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
I haven't seen that film.
The time window is life experience up to now.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
Have you finished the report?
The speaker asks whether the report is complete now.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
Have you ever broken your arm?
Ever asks about any time before now, not a specific date.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
We haven't decided yet.
Yet is common in negative present-perfect sentences about expected results.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
I've never eaten sushi.
Never means not at any time before now.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
I've just sent the email.
Just highlights a recent completed action with a present result.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
Your English has improved.
The present perfect is natural for changes from before to now.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
She has worked here for three years.
This means she still works here.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
I have seen Maria yesterday.
A finished past-time marker like yesterday does not normally combine with the present perfect.
I saw Maria yesterday.
Use the past simple with a finished past time.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
I've seen Maria this week.
This week can be unfinished, so the present perfect is natural.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
She worked here for three years.
This usually means she does not work here now.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
She has been to Paris.
She visited Paris at some time before now and is not necessarily there now.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
She has gone to Paris.
She is in Paris now or on the way there.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
I have lived here since five years.
Since needs a starting point, not a length of time.
I have lived here for five years.
Use for with a length of time.
Soma sentensi kwa vipande vya maana, si neno kwa neno.
Tafadhali ingia ili uendelee