Your question was a little confusing but for your information here are a few pointers. If you have completed and passed all 14 of the ATPL exams then you have 3 years in which to complete your CPL.
If you have not passed your ATPL's yet then you have 18 month from the date of your first exam sitting. CAA are very strict in terms of the 18 month period, however if you are coming to the end of the 18 month period then the CAA are accomodating in trying to assist you in finishing within the 18 month time period.
If you do not complete the exams within the 18 month period (even if you have passed some but not all exams) then you will have to start all over again.
For further info consult LASORS (section G i think) and FCL1. It's all in there.
P.S. Having just checked LASORS (Section D) It states
"A pass in the theoretical knowledge examinations given in
accordance with JAR-FCL 1.490 will be accepted for the
grant of the CPL(A) or IR(A) during the 36 months from
the end of the month of the date of gaining a pass in all
the required examination papers*. Provided that an IR(A)
is obtained in accordance with the above, a pass in the
ATPL(A) theoretical knowledge examinations will remain
valid for a period of 7 years from the last validity date of the
IR(A) entered in the CPL(A) for the issuance of an ATPL(A)."