The present perfect tense indicates an action took place in the past, is associated with the present idea of now,eg:-Mary has never washed any dish. (up to now.)
The present perfect tense is used:-
(1)For an action just concluded when the resulting state is still present,
In your description and time of speaking;
3:00:01-3;00;00=00:01,and is the speaking time
=I=Mary
I have washed my dishes.
I have washed one dish.
The dish has been used for a meal and need to be washed
=Mary'll do the dishes
=wash them.
(2) For the duration of an action or of absence of an action that had begun in the past and continuing to the present time:-
eg:-I have not broken all dishes for (3-2=1 hr.)
=I have not washed any baking/serving dish.Another eg:-This hot water washing has made an excellent hot dish by Mary.
=chef's dish of the day.(WHEN dish means a vegetarian /fish dish Or when Mary can recommend the chef's dish of the day.)
(3)since is almost always in the present perfect;eg;-
She has washed dishes here (since) 13;00:00.
This tense is usual with already:-
She has (already) washed dishes by the time of 15:00:01.(= according to your speaking time.)
With the Adverbs of frequency:-
eg:-She has often/never/always, etc. washed dishes.
eg:-Have you ever heard of such a thing as broken all the dishes?
with the words:-now,today, up to now, up to the present, up to 15:00:01, so far, not yet, lately.the present perfect is used with ever and never if they have the meaning "at any time up to now"=now=15:00:01.