В чём особенности CONDITIONAL

Нулевой conditional:
if I have... I am …

Первый conditional:
if I have … I will …
If иin case
unless

Второй conditional:
I would … if I had…

Производная от второго conditional:
I wish I had

Третий conditional:
I would have done … if I had had …

Производная от третьего conditional:
I wish I had had

Смешанный conditional:
if I had had … I would have …

even if
If only
If … should
If … happen to …
ifI will
if I will  (insist on / keep doing something bad will happen)
if I will  (refuse to do smth)
if I will  (politeness)
If … to be + to infinitive …
If … were + to-infinitive ...
If … to be + perfect infinitive …