Sure! Here are a few examples of monads in Haskell:

Maybe Monad: A Maybe monad is used to represent computations that may or may not have a result, where Nothing represents failure and Just a represents success. The bind operator (>>=) is used to chain computations, with the final result being either Nothing or Just a.

Example: 

data Maybe a = Nothing | Just a
instance Monad Maybe where
  return x = Just x
  Nothing >>= f = Nothing
  (Just x) >>= f = f x


List Monad: A List monad is used to represent computations that generate a sequence of results, with each operation in the sequence producing a list of results. The bind operator (>>=) is used to chain computations, with the final result being a concatenation of the results of each operation.

Example: 

instance Monad [] where
  return x = [x]
  xs >>= f = concat (map f xs)


IO Monad: An IO monad is used to represent computations that perform IO actions, such as reading from or writing to a file, or receiving input from the user. The bind operator (>>=) is used to chain computations, with the final result being the result of the last IO action.

Example: 

instance Monad IO where
  return x = return x
  (>>=) = (>>=)


In general, monads provide a way to structure code for sequential computations in a way that is composable and easy to reason about. By abstracting away the details of effects, monads make it easier to write programs that are robust, maintainable, and perform well.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence