Shall ever succeed

Test No. [color=blue]incompl/inter-90 “Tenses”, question 8

Sometimes I wonder if I ever succeed.

(a) do
(b) shall
(c) am
(d) were

Test No. [color=blue]incompl/inter-90 “Tenses”, answer 8

Sometimes I wonder if I shall ever succeed.

Correct answer: (b) shall

Your answer was: [color=red]incorrect
Sometimes I wonder if I am ever succeed.
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How to do it?

The help verb (auxiliary verb) [color=blue]shall or [color=blue]will requires the infinitive of the base verb.

So, it’s If I [color=blue]will/shall ever [color=blue]meet anyone again.[YSaerTTEW443543]

TOEIC short conversations: An airline customer wants to change his flight[YSaerTTEW443543]

Hi Mr. Torsten…

It is the same like ‘First Conditional’?

The position was inverse and that is right sentence.

Thank you.

can we write ‘will’ instead of ‘shall’ without a change in the meaning?
why is there ‘shall’ in the sentence?

thank you very much