no
underlying theme = grundlegendes Thema underlying theme = Grundthema underlying theme = Leitmotiv
Underlying is an adjective, it doesn't have a past tense.
code first the underlying disease
the underlying cause is the main reason or motive for an action or event
The underlying reason I go to school is to learn and get smarter.
The underlying tone of the night sky can influence what is visible via a telescope with out filters. A good filter will eliminate most of the distracting underlying tone.
An underlying formula in Excel is used in a spreadsheet to do something different than the formula does. An underlying formula can be used to remove values or display numbers.
The underlying language is called HTML.
the lawyer gave an underlying opinion during the court case
Example sentence - The underlying cause of her rude behavior turned out to be her own mother.
I wonder what his underlying motive was when he paid Jan's debts.
Underlying distribution is a concept that describes the density for the value of the measurement. It is a theoretical concept.