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"
With commas:
"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..."