I (wait) for you for an hour.
Answers
I will wait for you for an hour.
or
I am going to wait for you for an hour.
or
I am waiting for you for an hour.
Explanation
Let's put the sentence by parts.
I / wait / for you / for an hour.
I(S) wait(V) for you(A) (for an hour)(C).
So, the sentence is talking about the incidents in the future.
Ans 1: I will wait for you for an hour.
The first sentence is simple future tense.
It is used to show plans/predictions.
Ans 2: I am going to wait for you for an hour.
The second sentence is be going to + gerund form.
It is used as well as the first sentence.
Ans 3: I am waiting for you for an hour.
The third sentence is present continuous tense.
The present continuous tense is used to show plans only in the near present.
For your information:
S=Subject
V=Verb
A=Adjective
C=Complement
O=Object
IO=Indirect Object
DO=Direct Object
Example sentences are below.
SV: I won!
SVA: He went home. (home as an adjective, not noun)
SVO: I earned money.
SV IO DO: I gave her a gift. (Two objects, 'she' receives the gift 'directly'.)
SVOC: He kept his students silent. (His students are silent, not 'himself'.)
Answer:
waited is your answer.
Hope it will help