Examples

2 sentences
  1. I hope that he fails to notice that.

  2. Convinced because of his baldness that he couldn't attract women, Tom failed to notice that Mary was eyeing him up.

    deTom war fest davon überzeugt, aufgrund seiner Kahlköpfigkeit nicht bei den Frauen landen zu können. Dabei bemerkte er gar nicht, dass Maria ein Auge auf ihn geworfen hatte. — Pfirsichbaeumchen

Forms

fails to notice, failing to notice, failed to notice, failed to notice
Base formfail to notice · to fail to notice
3rd person singularfails to notice
Present participlefailing to notice
Past simplefailed to notice
Past participlefailed to notice

irregular

Present simpleLesson

I, you, we, theyfail to notice
he, she, itfails to notice

Past simpleLesson

all personsfailed to notice

Present perfectLesson

I, you, we, theyhave failed to notice
he, she, ithas failed to notice

Future simple (will)Lesson

all personswill fail to notice

See also

neighbours in the dictionary
fail to notice — meaning, examples, forms, synonyms | Krumeto