Question

"I dousted if I should ever come back." Why did the poet double?

Answer 1

These lines from the third stanza of Robert Frost's "The Road Not Taken" follow the lines in which the speaker says that he chooses a path that is just "as fair" as another road; a path that is attractive because it shows no indication of people having traveled it.  As he chooses the one path, the speaker reflects that he thinks that he can come back to the other one at another time:  "Oh, I kept the first for another day!"