constitute
verb (used with object)
to compose; form.
Used to describe an ongoing action or continuous state that was happening at a specific time in the past.
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The prisoners took some food, when the president of the Commune, which was constituting itself in a neighbouring room, seeing everything calm, also withdrew.
From History of the Commune of 1871 by Lissagary, P.