Related to this question: When I have a phrase with two verb-plus-preposition combinations, describing the same noun, but requiring different prepositions, how should they be separated?
Not at all:
"I was conscious of and delighted with the answer from the stackexchange community"
With em dashes:
"I was conscious of—and delighted with—the answer from the stackexchange community"
"I was conscious of, and delighted with, the answer from the stackexchange community"
Some other way—single em dash, en dashes or hyphens, parentheses, colon/semicolon...
Similarly, what about one verb with a preposition and one without?
"Whether he was giving up—or accepting—an award..."
"Whether he was giving up or accepting an award..."