Complex sentence: On Shakespeare, the completion of "A" was to be the major concern of the remainder of Zukofsky's writing life, with the final complete edition going to press as the poet lay on his deathbed in 1978.
Split into simpler sentences: On Shakespeare, the completion of "A" was to be the major concern of the remainder of Zukofsky's writing life. The final complete edition going to press as the poet lay on his deathbed in 1978.