What's the difference of "...tara", "...ba" , "...nara", "...to"?

 What's the difference of "...tara", "...ba" , "...nara", "...to"?

(1) "...tara"= "if/when" (depending on the context) (Keyword wa "completion" desu.)

(2) "...ba" = conditional form (keyword wa "mochiron", "itsumo", "touzen")

(3) "...nara" = "case (+ if)" 

(3) "...to" = when (keyword wa "natural", "automatic")

ex:

Shigoto ga owattara, tomodachi to nomi ni ikimasu. - when finished work, will goto drinks with friends.

 Asa okitara, yukiga futte imashita.  --Morning 

(Moshi) ame ga futtara, ikimasen. - If it is rain, will not go

  (Moshi) Otoko/Onna dattara, nani o shitai desu ka. -

Benkyou sureba, jouzu ni narimasu.

    - Takusan tabereba, futorimasu.

    - Nanimo tabenakereba, shinimasu.

    - Yasukereba, kaimasu.

Ashita isogashii nara, asatte aimashou.

  - Ame nara, ikimasen.

  - Kyouto ni ikunara, aki ga ii desu yo.

  - Sushiya nara ano mise ga osusume desu.

 Amega furuto suzushiku narimasu.

  - Massugu ikuto ginkou ga airmasu.

  - Osake o nomuto nemuku narimasu.

  - Takusan benkyou suruto jouzuni narimasu.

  - Okane o ireruto nomimono ga demasu.

"...tara", "...ba" , "...nara", "...to"  wa lesson de mo totemo jikan ga kakarimasu. 

Note dake de setsumei surukoto wa totemo muzukashii desu.

Motto renshuu shitai nara, lesson o ukete kudasai.