Iterating records in a nested route - Ruby On Rails

I have records in which I wanted to be displayed with this url: http://localhost:3000/surveys/1/respondents/1which I have achieved by:

resources :surveys do
  resources :respondents
end

And to show the form I do it using: <%= form_for([@survey, @respondent]) do |form| %>and everything indicates to be fine, my problem comes when it comes to being able to iterate the respondents that belong to the id of the current survey

<% @respondents.each do |respondent| %>
  <tr>
    <td><%= respondent.name %></td>
    <td><%= link_to 'Show', [ @survey, respondent ] %></td>
    <td><%= link_to 'Edit', edit_respondent_path(respondent) %></td>
    <td><%= link_to 'Destroy', respondent, method: :delete, data: { confirm: 'Are you sure?' } %></td>
  </tr>
<% end %>

Well, in the case of the link to the show view: <%= link_to 'Show', respondent %>the variable respondentdidn't work, so I modified it this way: <%= link_to 'Show', [ @survey, respondent ] %>but I can't make it work either, I suppose it has to do with the way I have the loop structured, I appreciate if you can help me

responders_controller.rb

class RespondentsController < ApplicationController
  before_action :set_respondent, only: [:show, :edit, :update, :destroy]

  # GET /respondents
  # GET /respondents.json
  def index
    @respondents = Respondent.all
  end

  # GET /respondents/1
  # GET /respondents/1.json
  def show

    respond_to do |format|
      format.html
      format.pdf { render template: 'respondents/report', pdf: 'Report' }
    end

  end

  # GET /respondents/new
  def new
    @survey = Survey.find(params[:survey])
    @respondent = Respondent.new
    @respondent.answers.build
    @answer_option = @respondent.answer_options.build
    @answer_option.sub_answer_options.build
  end

  # GET /respondents/1/edit
  def edit
    @respondent.answers.build
  end

  # POST /respondents
  # POST /respondents.json
  def create
    @respondent = Respondent.new(respondent_params)

    respond_to do |format|
      if @respondent.save
        format.html { redirect_to survey_respondent_path(@survey, @respondent), notice: 'Respondent was successfully created.' }
        format.json { render :show, status: :created, location: @respondent }
        ResultMailer.respondent(@respondent).deliver_later
      else
        format.html { render :new }
        format.json { render json: @respondent.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /respondents/1
  # PATCH/PUT /respondents/1.json
  def update
    respond_to do |format|
      if @respondent.update(respondent_params)
        format.html { redirect_to @respondent, notice: 'Respondent was successfully updated.' }
        format.json { render :show, status: :ok, location: @respondent }
      else
        format.html { render :edit }
        format.json { render json: @respondent.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /respondents/1
  # DELETE /respondents/1.json
  def destroy
    @respondent.destroy
    respond_to do |format|
      format.html { redirect_to respondents_url, notice: 'Respondent was successfully destroyed.' }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_respondent
      @respondent = Respondent.find(params[:id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def respondent_params
      params.require(:respondent).permit(:name, :email, :phone, :survey_id, answers_attributes: [:id, :response, :question_id,  :respondent_id], answer_options_attributes: [:id, :response, :question_id, :respondent_id, sub_answer_options_attributes: [:id, :answer_option_id, response: [] ]])
    end
end

index.html.erb

<p id="notice"><%= notice %></p>

<h1>Respondents</h1>

<table>
  <thead>
    <tr>
      <th>Name</th>
      <th>Email</th>
      <th>Phone</th>
      <th>Survey</th>
      <th colspan="3"></th>
    </tr>
  </thead>

  <tbody>
    <% @respondents.each do |respondent| %>
      <tr>
        <td><%= respondent.name %></td>
        <td><%= respondent.email %></td>
        <td><%= respondent.phone %></td>
        <td><%= respondent.survey.id %></td>
        <td><%= link_to 'Show', [ @survey, respondent ] %></td>
        <td><%= link_to 'Edit', edit_respondent_path(respondent) %></td>
        <td><%= link_to 'Destroy', respondent, method: :delete, data: { confirm: 'Are you sure?' } %></td>
      </tr>
    <% end %>
  </tbody>
</table>

<br>

<%= link_to 'New Respondent', new_respondent_path %>