What verbs are used to indicate what can happen to a "dream deferred" in Langston Hughes's poem "Harlem"?

In stanza one, the word "dry"—in the phrase "dry up"—is used as a verb. The implication here is that a dream deferred as good as disappears, as the water in a river would disappear if the river were to "dry up." Also in the first stanza, we have the verb "fester." When something festers, it becomes infected. If something is described as festering, it also usually means that that something is getting worse.
In the first stanza, the speaker also asks whether a dream deferred "stink[s] like rotten meat." The verb here is "stink." When a body dies, it rots and eventually "stinks," so perhaps a dream deferred is like a rotten corpse: after while, it begins to stink.
In the second stanza, the speaker speculates that perhaps the dream deferred "just sags." The word "sags" here is a verb, and implies something that is devoid of energy or, even worse, devoid of life altogether.
Finally, in the third stanza, the speaker asks, "does it explode?" The verb here is "explode," and it suggests that a dream deferred might actually "explode" like a ticking bomb that hasn't been defused. This is perhaps the worst outcome of all, as an explosion connotes violence and destruction.