Which sentence is the best in the situation?

Question

Hi all,
I thank you all for answering my previous question (will or would be a good teacher). I got some clear picture, but still got some doubt. Maybe this is too easy, but I need answer. In my previous question all said there is some condition in the case of second sentence (He says she would be a good teacher). Now please explain me the meaning of these two sentences:

1. Sam says if she is a teacher she will be a good teacher.
2. Sam says if she was a teacher she would be a good a teacher.

What I understand is: we use condition one for probable action in present or future; condition two for action which are contrary to known facts and which we don’t expect to take place in present or future.

Now the girl is not a teacher, but wants to take up that profession; and Sam thinks the girl will be a good teacher in future. Then which sentence is correct: a) Sam says, “She will be a good teacher” or b) Sam says, “She would be good teacher”.

Hope I am clear. Please answer this.

Answer 1

Since she has already made the decision to be a teacher, the correct sentence is a) Sam says, "She will be a good teacher".

Answer 2

I'd say "Sam says that if she were a teacher should would be a good teacher." The conditional implies that she's not yet a teacher.

Answer 3

if she is a teacher means she speaks of her possible future - like a girl who thinks about becoming a teacher but is too young to be one now - first conditional - correct here

if she was a teacher is about adult somebody who probably has a different job now. second conditional= unreal condition - she is not a teacher now, she choose different job.