far, farthest
Farther, farthest
The comparative form is farther or further. The superlative is the farthest or thefurthest.
The superlative form of the adverb "far" is "farthest" or "furthest."
The superlative form of "movingly" is "most movingly."
The superlative form of clean is "cleanest".
The superlative form of clean is "cleanest".
The superlative form of ancient is ancientosity
comparative - merrier superlative - merriest
positive comparative superlative mad madder maddest
"Poke" is a verb and a noun and, as such, does not have a superlative form.
Teach is a verb and so has no superlative form.