If you want or wanted or do not want or did not want to do something you can express it in Japanese language. It is easy once you learn the pattern to express your desired action. Lets go directly to the point:
Want:
Entry word: たべます – 食べます
Japanese: たべたい
Reading: tabetai
Meaning: Want to eat
Do not want:
Japanese: たべたくない
Reading: tabetakunai
Meaning: Do not want to eat
Wanted:
Japanese: たべたかった
Reading: tabetakatta
Meaning: Wanted to eat
Did not want:
Japanese: たべたくなかった
Reading: tabetakunakatta
Meaning: Did not want to eat
So to summarize the pattern remember below points:
If you want to do something tai (たい) is used.
If you do not want to do something takunai (たくない) is used.
If you wanted to do something takatta (たかった) is used.
If you did not want to do something takunakatta (たくなかった) is used.
Lets see five more examples:
Japanese: いきます – 行きます
Reading: Ikimasu
Meaning: To go
Action form will be:
いきたい – Want to go
いきたくない – Do not want to go
いきたかった – Wanted to go
いきたくなかった – Did not want to go
Japanese: みます – 見ます
Reading: Mimasu
Meaning: To see
Action form will be:
みたい – Want to see
みたくない – Do not want to see
みたかった – Wanted to see
みたくなかった – Did not want to see
Japanese: のみます – 飲みます
Reading: Nomimasu
Meaning: To drink
Action form will be:
のみたい – Want to drink
のみたくない – Do not want to drink
のみたかった – Wanted to drink
のみたくなかった – Did not want to drink
Japanese: ききます – 聞きます
Reading: Kikimasu
Meaning: To listen
Action form will be:
ききたい – Want to listen
ききたくない – Do not want to listen
ききたかった – Wanted to listen
ききたくなかった – Did not want to listen
Japanese: きます – 来ます
Reading: Kimasu
Meaning: To come
Action form will be:
きたい – Want to come
きたくない – Do not want to come
きたかった – Wanted to come
きたくなかった – Did not want to come
Hope this learning is helpful enough for you about how to express your desired action in Japanese language. Please try using them when you have chances, in this way you will be able to improve your Japanese little by little.