Where et alone carries the adversative sense, it is generally used to join two opposing verbs or verbal phrases: compare Cic Tusc I 6 'fieri ...
"The Last Poems of Ovid"
Ovid
Other words of an adversative nature are yet, however, nevertheless, only, notwithstanding, and still.
"Composition-Rhetoric"
Stratton D. Brooks
Let him first say all he wants to say about A. Then let him deliberately use the adversative but, and proceed to the discussion of B. In the following paragraph on "Whipping Children" the writer tries to be on both sides of the fence at once.
"The Century Handbook of Writing"
Garland Greever Easley S. Jones