The comparative form of "crazy" is "crazier." It is used to compare the level of craziness between two subjects. For example, you might say, "This idea is crazier than the last one."
The comparative form is crazier; the superlative form is craziest.
crazy-crazier-craziest
crazier
The comparative form of busy is busier.
The comparative form of dreamy is dreamier
The comparative form of friendly is friendlier.
comparative form is cleaner superlative form is cleanest
The comparative form of "central" is "more central."
The comparative form of many is more
The comparative form of "clean" is "cleaner."
The comparative form of friendly is friendlier.
The comparative form of softly is more softly