"a still existing" is correct and usable in written English.
You can use it as an adjective to describe something that currently exists but has been around for a long time. For example, "The theater is a still existing landmark in our town that has been around for over 100 years."
And while a still existing company like Aetna insurance was built on insuring slaves' bodies, it has apologized but won't pay reparations.
After an extensive theoretical introduction that also serves as a general introduction to the dramatic chorus from the comic vantage point, a close reading of Aristophanes's Thesmophoriazusae shows that ritual is indeed present in both the micro- and macrostructure of Attic comedy, not as a fossilized remnant of the origins of the genre but as part of a still existing performative choral culture.
After a theoretical introduction that also serves as a general introduction to the dramatic chorus from the comic vantage point, a reading of Aristophanes' Thesmophoriazusae shows that ritual is present in both the micro- and macrostructure of Attic comedy as part of a still existing performative choral culture.
Fomalhaut, from the Arabic Fum al Ḥūt, the Fish's Mouth, has long been the common name for this star, Smyth saying that Fom Alhout Algenubi appears, with its translation Os Piscis Meridiani, in a still existing manuscript almanac of 1340.
Entering independent and assisted living facilities as well as receiving other services has presented enormous problems for some elderly gay and lesbians who must confront a still existing ignorance that forces them back into the closet.
Tucker's Entertainment Weekly colleague Jeff Jensen commented that he was able to "roll" with some of the less plausible plot details (such as a still existing Massive Dynamic) out of praise for guest stars Cusick and Haig, believing they "worked well in this world".
Eventually, more field work should be directed to Faial Island, particularly in the whole Caldeira area, in order to detect a potentially still existing V. dabneyi population on that island.
In the case of a draw still existing, rounds of 3 penalties will be shot.
As a controversy is still existing about the effect of frequency in ultrasonic fatigue, it is of interest to study the effect of heating dissipation, damage, microstructure.
As a consequence, many still existing glacier and permafrost landscapes probably transform within decades into new landscapes of bare bedrock, loose debris, sparse vegetation, numerous new lakes and steep slopes with slowly degrading permafrost.
Of these texts the most important are those ascribed to Hermes Trismegistos by the Harranians and now preserved in Arabic, the Book of the Zodiac of the Mandaeans (a Gnostic sect still existing in Iraq and Khuzistan), the Apocalypse, attributed to the biblical prophet Daniel (extant in Greek, Syriac, and Arabic versions), and The Book of the Bee in Syriac.
