<span>The speaker in In Memoriam, A. H. H. by
Alfred, Lord Tennyson, believes in Death's supreme power. [ This might
give an idea of how the poem is an account of all Tennyson's thoughts
and feelings as he copes with his grief over such a long period -
including wrestling with the big philosophico-scientific questions of
his day.</span>
Adverbs of time tell us when an action happened, but also for how long, and how often. Adverbs of time are invariable. They are extremely common in English. Adverbs of time have standard positions in a sentence depending on what the adverb of time is telling us
The highest one you can get is a Doctoral degree. While it is not needed to practice, you need it to get a license.