Going to + verb

[Young Boy]

ESL/EFL Test "Making an Appointment", question 9

So, when you say: I've got a date with my boss, it means you ......... see your boss privately.

(a) are going to
(b) will not be
(c) will be
(d) would be

ESL/EFL Test "Making an Appointment", answer 9

So, when you say: I've got a date with my boss, it means you are going to see your boss privately.

Correct answer: (a) are going to

Your answer was: incorrect
So, when you say: I've got a date with my boss, it means you would be see your boss privately.
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plz make me clear why the answer is "are going to"?
thanks

[Mister Micawber]

The main verb of the sentence is see. All the answers include the verb be, but only is going to forms its verb phrase with the nonfinite form of see:

is going to see
(X) will not be see
(X) will be see
(X) would be see

The present participle can be used with these last three, and then will be seeing is OK, but the other two forms are incorrect in any case: will not be seeing is semantically illogical, and would be seeing is grammatically incorrect, requiring a conditional sentence.
.
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Canadian-American native speaker
who teaches English for a living at Mister Micawber's
ESL cafe: Interview with Mister Micawber