Not single but multiple houses play role in any event of life. In KP terminology, these groups of houses for the event is called "House Group". This is also referred as Formula by some KP astrologers. In the table below we need to combine primary houses and supporting houses to come up with the house grouping for the event. For example, event "Good health" has 1,11 as house group. Event "Proneness of disease" has house group 1, 6, 8, 12. 

There are two uses of the House Grouping table below -

If the cuspal sub lord of primary house signifies primary and supporting houses, the event is promised. Please read "Chapter 2: Fundamental Principles" to get better understanding. 

Events happens when the planet-lords of current dasa (dasa lord, antardasa lord, pratyantardasa lord, sookshma lord etc.) signifies house group. For example, one has "Good health" when one passes through dasa of the planets signifies houses 1,11. Similarly, "Proneness to disease" happens when one passes through dasa of the planets signifies 1,6,8,12. Again, please read "Chapter 2: Fundamental Principles" to get better understanding. 

2.      Events relating Second House.

Type of Query	Primary House	Supporting Houses
Financial Status	2	2,6,11
Obtaining Loans	2	11 (6)
Obtaining Jewellery	2	11
Defect in Speech, Vision	2	12,8
Insurance claims	2	8,11
Medical claims	2	6,8,11
Opening bank account	2	6,11

3.      Events relating Third House.

Type of Query	Primary House	Supporting Houses
Signing a contract	3	6,9,11
Meeting Bank officer for overdraft	3	6,9,11
Filing a court case	3	6,11
Getting Passport, Green card, Visa	3	9,11,12
Starting journey	3	5,9,11
Negotiations	3	9,11 and the cuspal position that represents the purpose
Change of place- Transfer	3	10,11
Younger co-born proneness to sickness	3	8,10,2
Computer programmer	3	2,11 (10)
Publication as Profession	3	2,11 (10)

4.      Events relating Fourth House.

Type of Query	Primary House	Supporting Houses
Basic education	4	11
Purchase of property, vehicle, furniture	4	11,12
Sale of property etc.	4	3,5,10
Taking possession of flat, quarter etc.	4	9,11
Laying foundation of a house	4	11
Occupying a new house	4	11
Mother’s proneness to sickness	4	9,11,3
Engineering as subject of study	4	10
Medicine as subject of study	4	6
Law as subject of study	4	6 or 9
Fine arts as Subject of study	4	5
Teaching as Profession	4	2,6,10 (9)

5.      Events relating Fifth House.

Type of Query	Primary House	Supporting Houses
Child Birth	5	2,11
Pregnancy	5	2,11
Love Marriage	5	7,11
Rape	5	8,12
Success in sports	5	6,11
Sports, fine arts, film, speculation as profession	5	2,11 (10)
Caesarean	5	2,8

6.      Events relating Sixth House.

Type of Query	Primary House	Supporting Houses
Disease- Nature & Part	6	Involved cusp
Promise of Loan	6	2,11
Secret activities of Partner	6	5
Success in competition	6	1,11
Success in Litigation	6	1,11
Recovery from disease	6	5,11
Disease unknown in medical science	6	5,11
Medical Practitioner	6	2,11 (10)
Legal profession	6	2,11 (9,10)

7.      Events relating Seventh House.

Type of Query	Primary House	Supporting Houses
Marriage	7	2,11
Second child	7	2,11
Partnership	7	5,11
Theft	7	2,12
Danger from opponents	7	8,12
Loans from Bank	7	6,2,11
Marriage-engagement	7	3,9,11

8.      Events relating Eighth House.

Type of Query	Primary House	Supporting  Houses
Criminality as Profession	8	2,11 (10)
Unexpected Gains	8	2,11
Unexpected Loss	8	5,12
Receipt of Gifts	8	6,11
Ornaments or cash from inheritance	8	2,11
Property, vehicle from inheritance	8	4,11
Recovery of lost articles	8	2,6,11
Unnatural death	8	1,12
Death due to sickness	8	6,12
Death due to accident	8	4,12
Depression	8	1,3,12
Committing rape	8	5,12
Surgeons	8	2,11 (10)

9.      Events relating Ninth House.

Type of Query	Primary House	Supporting Houses
Long Journeys	9	3,12
Higher education	9	11 (4)
Second Marriage	9	7,11
Third Child	9	2,11
Father’s proneness to sickness	9	2,4,8
Success in spiritual discipline	9	6,11
Politics as Profession	9	2,6,11 (10)

10.  Events relating Tenth House.

Type of Query	Primary House	Supporting Houses
Service or Business	10	6,7
Commission as Business	10	3,11
Name & Fame	10	1,11
Retirement	10	5,9
Promotion in Service or Business	10	2,6,11
Break in Service	10	5,9
Problems in Business or Service	10	5,8
Suspension in Service	10	5,6 (8)
Compulsory Retirement	10	5,9 (8)
Voluntary Retirement	10	1,5,9
Removal from service	10	5,9 (8)
Export Business	10	2,6,11 (12)
Medical Practitioner	10	2,6,11 (8)
Publications as Profession	10	2,6,11 (3)
Legal Profession	10	2,6,11 (9)
Politics as Profession	10	2,6,11 (9)
Teaching as Profession	10	2,6,11(4,9)
Computer Programmer	10	2,6,11 (3)

11.  Events relating Eleventh House.

Type of Query	Primary House	Supporting Houses
Winning in Love	11	5,7
Satisfaction of Desires	11	1
Sexual relationship with friend	11	7,5

12.  Events relating Twelfth House.

Type of Query	Primary House	Supporting Houses
Repayment of Loan	12	5,8
Recovery of Lost article	12	2,6,11
Secret activities as profession	12	2,11 (10)
Gain in Investment	12	2,6,11
Loss in Investment	12	5,8
Danger from involvement in secret activities	12	7,8
Imprisonment	12	3,8
Receipt of secret documents	12	4,11
Absconding	12	3,8
Success in research	12	6,11
Export Business	12	2,11 (10)
Foreign Travel	12	3,9

Some other House Groups -