WHICH IS THE CORRECT FORM?

this has been using in medications for many years.

it is being used for many diseases.


These are two sentences . one is in passive. are they grammaticality correct? do they convey same meaning?

varmaswathy81 said:

This has been used in medications for many years.

It is being used for many diseases.


These are two sentences . one is in passive. are they grammaticality correct?
They are now.
do they convey same meaning?
Er ... no. How could they when there is different information in them?

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They are both passive sentences. The active sentences would be:
"People have been using this in medications for many years."
"People (doctors, etc) use it for many diseases."

Thank you .

I have one more doubt.

you corrected the first sentence as, 'it has been used'

but, in another sentence like," I have been working here for the past three years." it is ing form (WORKING) is used after 'have been".

but, above , we used past tense (USED) after 'has been'

what is the difference in these two sentences? I mean, the grammar part.

I understood from your answer is, if we use the ing form after have been or has been , it is active voice. right? but there should be a subject. yes?

If you have a present perfect progressive passive, it is a strange form:
It has been being used.

Normally, we avoid been being or be being and either use the active or the simple form
People have been using it.
It has been used.