Correct spelling, explanation: available is a word created by adding the -able suffix to a base word. In this case, the base word is avail. You may know this word as it’s also used in other contexts. In the case of available, the process is simple and neither the base word nor the suffix requires any additional changes.

Definition of available:
adjective
1. able to be reached, used, or obtained
Brand new products will be available in stores in September.
Let me know when you’re available so we can grab a coffee.

Incorrect spelling, explanation: if you consider the pronunciation of available, you can already suspect that avalable is not the correct spelling. Another reason is that the base word in available is avail, while the improper spelling suggests base words such as aval or avale, and there are no such words in English. Anyway, you probably already know the word avail from phrases such as to no avail, so if you remember the base word, just add the suffix and you’re ready to go!

Incorrect spelling

Incorrect spelling

Incorrect spelling

Incorrect spelling

Incorrect spelling