The life span of the butterfly ranges from 3 days to 6 months, but on the average they live for 2 to 3 months.
(The life span of the butterfly; ranges; from 3 days to 6 months) (they; live; T:for 2 to 3 months)
The life span of the butterfly they
ranges live
from 3 days to 6 months
T:for 2 to 3 months