more in, most in
The comparative and superlative degrees of clean are cleaner and cleanest.
out
Get is a verb and does not have comparative or superlative degrees.
Comparative and superlative degrees are for adjectives and adverbs. House can be used as a noun or a verb and does not have comparative or superlative forms.
more in, most in
more out, most out
The three degrees (of comparison) for adjectives are Positive, Comparative and Superlative. Example: hard (positive) harder (comparative) hardest (superlative)
The comparative and superlative degrees of "white" are formed in the standard way: "whiter" and "whitest" respectively.
greater & greatest
merrier, merriest
softer softest
finer, finest