1.Infinitive phrase as a subject: "To update one's skills and education is crucial" uses an infinitive phrase as the subject of the sentence, demonstrating advanced grammar skills.
2.Relative clause: "skills required for the new role" uses a relative clause to provide additional information about the skills, adding complexity to the sentence.
3.Gerund phrase as a subject: "Attending workshops and seminars" uses a gerund phrase as the subject, showcasing the ability to use diverse grammatical structures.
4.Adverbial phrase: "to ensure competitiveness in the job market" functions as an adverbial phrase, explaining the purpose of returning to school, and adding depth to the sentence.