Sprawdzenie poprawności kilku zdań z if

Witam, mam kilka zdań napisanych z użyciem if, jednak nie wiem, czy są napisane ok. Przykład 'A" wydaje mi się ok, jednak co do "B" już nie byłbym taki pewien.

A.
If J learn English J will know language
If J know language J will get a good job
If J get a good job J will earn a lot of money
If J have a lot of money J will feel better
If J be feel better J will have a nice job

B.
Jf my best friend buys a lot of computer games He will be alone
Jf my best friend is alone He will be sad
Jf my best friend is sad He will think at strange stupid thinks
Jf my best friend thinks strange stupid thinks He will want die
Jf my best friend wants die He will commit suicide.

Dodam, iż korzystałem z pierwszego trybu warunkowego

Pozdrawiam, patbul.

A.
If J learn English, J will know language
If J know this language, J will get a good job
If J get a good job, J will earn a lot of money
If J have a lot of money, J will feel better
If J feel better, J will have a nice job

B.
Jf my best friend buys a lot of computer games, he will be alone
Jf my best friend is alone, he will be sad
Jf my best friend is sad, he will think of strange, stupid things
Jf my best friend thinks of strange, stupid things, he will want to die
Jf my best friend wants to die, he will commit a suicide.

A.
If J learn English J will know this language