Final answer:
The misspelled word is 'maintinence' and it should be spelled as 'maintenance'. Double checking and familiarizing oneself with common misspellings, and using examples to practice, like underlining specific sounds in words, can improve spelling skills.
Step-by-step explanation:
The misspelled word in the list provided is maintinence. The correct spelling of this word is maintenance. Spelling errors can be tricky, and it's important to double check words, even when using spell check applications as they can sometimes miss these errors. A good strategy is to familiarize oneself with commonly misspelled words and to use a dictionary when in doubt. For example, in the context of underlining letters to represent sounds, one would underline the letter 'b' in behind, the letter 't' in itself, and the letter 'd' in wonderful.
To further practice spelling, here are some exercises: Underline the letters that represent the sound [k] in truck, stock, make, bark, and embark. Also, experiencing word changes can help with learning correct spellings. For example, starting with the word battle, you could change the first consonant to the twentieth letter in the alphabet to form settle and then change the 'a' to 'ee' to get beetle.