Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE party_addresses ( party_id number, address_id number, date_address_from time, address_type_code text, date_address_to time )
TABLE: CREATE TABLE party_forms ( party_id number, form_id number, date_completion_started time, form_status_code text, date_fully_completed time )
TABLE: CREATE TABLE party_services ( booking_id number, customer_id number, service_id number, service_datetime time, booking_made_date time )
TABLE: CREATE TABLE forms ( form_id number, form_type_code text, service_id number, form_number text, form_name text, form_description text )
TABLE: CREATE TABLE organization_contact_individuals ( individual_id number, organization_id number, date_contact_from time, date_contact_to time )
TABLE: CREATE TABLE organizations ( organization_id number, date_formed time, organization_name text, uk_vat_number text )
TABLE: CREATE TABLE parties ( party_id number, payment_method_code text, party_phone text, party_email text )
TABLE: CREATE TABLE services ( service_id number, service_type_code text, service_name text, service_descriptio text )
TABLE: CREATE TABLE individuals ( individual_id number, individual_first_name text, individual_middle_name text, inidividual_phone text, individual_email text, individual_address text, individual_last_name text )
TABLE: CREATE TABLE addresses ( address_id number, line_1_number_building text, town_city text, zip_postcode text, state_province_county text, country text )

### Question ###
Find the name of the most popular party form.

### Accurate SQL ###

SELECT t1.form_name FROM forms AS t1 JOIN party_forms AS t2 ON t1.form_id = t2.form_id GROUP BY t2.form_id ORDER BY COUNT(*) DESC LIMIT 1