cleaner
clean - cleaner (the superlative is the cleanest).
dirtier
tider
dirtier
The comparative form of solid is solider
The comparative form of in is inner.
comparative - merrier superlative - merriest
Dirtier and dirtiest.
"Shine" is a verb and a noun and, as such, does not have a comparative form. The comparative form of the adjective shiny is shinier.
dirtier
dirtier, dirtiest
dirtier, dirtiest
dirtier
Superlative and comparative of dirty
dirtier, dirtiest
dirtier, dirtiest
The comparative form of dreamy is dreamier
The comparative form of many is more
dirtier, dirtiest
Dirtier and dirtiest
The comparative form of "softly" is "more softly."