"could be vague" is a correct and usable phrase in written English.
It is typically used to express uncertainty or ambiguity about a statement or situation. For example: - Her explanation could be vague, so let's ask for clarification. - The instructions could be vague, making it hard to follow. - His intentions could be vague, leaving us unsure of what he really wants. - The meaning of the poem could be vague, leaving it open to interpretation.
Elsewhere massed voices could be vague in definition and not always together.
"You hear a lot of things that sound like they could be vague or interesting stories.
Near the end, she could be vague and disoriented during performances.
And even his contemporaries have suggested that, though sure in his conclusions, he could be vague in his details.
Many people recoil at the thought that the world itself could be vague or indeterminate, perhaps because they believe that indeterminacy must be a result of mismatch between what is represented (the world), and what does the representing (thought or language).
Hit one of these 'Respond' buttons, which generally appear next to Twitter and Facebook 'Like' widgets on publisher sites, and a window will pop up prompting you to answer a question related to the article (the question could be vague like "What do you think", or it can be more specific).
During the one-year-out ceremonies last week, a stinging mass of what could be vaguely described as air covered Beijing, much to the chagrin of the proud organizers.
They and their son, Archie (banned by his mother from eating any foods "that could be vaguely homosexual"), were joined by Jonathan Cake's Adam, a recovering alcoholic, his son (a teenage masturbator), and wrung-out dishcloth of a wife, Kerry Elizabeth Berringtonn).
Although this kind of information could be vaguely suspected from top-like tools, this level of detailed information is necessary for an advanced analysis of latency sources.
So, for that reason, there was a chance the whole thing could be vaguely interesting.
For one, it's a bit strange/scary to approach someone and ask, "Hey, can I take pictures of you jerking off until you cum?" Also, before this I had never watched someone masturbate in a non-intimate situation, which seemed like it could be vaguely awkward.
