The superlative form of the word "genuine" is "most genuine."
The superlative form of "slim" is "slimmest."
The superlative form of wise is wisest.
Last is the superlative form of late.late /later /last
The comparative form of "grumpy" is "grumpier," and the superlative form is "grumpiest."
They are "busier" and "busiest".
Busiest is not an adverb. It's the superlative form of the adjective busy.
No, the word 'busiest' is the superlative form of the adjective busy (busier, busiest).The abstract noun form of the adjective 'busy' is business.
busiest
Busy becomes busier and busiest.
busier, busiest
Comparative: busier Superlative: busiest
busier, busiest
busier, and busiest
Neither. It's the positive degree.
The superlative form of "movingly" is "most movingly."
The superlative form of clean is "cleanest".