fehlen

In a sentence

• Mir fehlen die Worte, um meine Gefühle auszudrücken.

  I lack the words to express my feelings.

  "Fehlen" is used to indicate the absence or insufficiency of something essential to express a sentiment (in this case, words).

• Auf der Liste fehlt dein Name.

  Your name is missing from the list.

  "Fehlen" denotes the absence of a specific item within a context (specifically, the omission of a name in a list).

• Mir fehlt die Energie, um heute zu arbeiten.

  I lack the energy to work today.

  "Fehlen" reflects the lack of a required or desired resource necessary to perform an activity (the energy needed for work).