Final answer:
Traer is irregular not only in the yo form but also shows irregularities in other forms and tenses, such as 'true' and 'train' in the present indicative and 'trade' in the preterite tense for the first person singular.
Step-by-step explanation:
False, traer is not only irregular in the yo form. Irregular conjugations occur in other forms as well. For example, in the present indicative tense, traer conjugates to 'traigo' in the yo form but also changes in the third person with 'trae' (for él, ella, usted) and 'traen' (for ellos, ellas, ustedes). Similarly, the preterite tense, has irregular forms such as 'traje' for the first person singular. It is important to understand these irregularities because verb conjugations are vital for correct sentence construction in Spanish.