1. Auxiliary adjective, I-adjective (keiyoushi)

   want to do ...; would like to do ...

   after the -masu stem of a verb

   私は彼女を知らないしまた知りたいとも思わない。

2. Particle

   indicates emphasis

   Kyuushuu dialectat sentence end

3. Suffix, I-adjective (keiyoushi)

   very ...

   after a noun or the -masu stem of a verb; also ったいsee めでたい

Also written ったいttai