@staticmethod
def _load_tense(tense):
    """
        Load and parses the inflected forms of the tense from xml file.

        :param tense: list of xml tags containing inflected forms.
            The list of inflected forms for the current tense being processed.
        :return: list.
            List of inflected forms.

        """
    persons = list(tense)
    if not persons:
        return None
    elif len(persons) == 1:
        if persons[0].find('i') is None:
            return None
        conjug = persons[0].find('i').text
    else:
        conjug = []
        for pers, term in enumerate(persons):
            if term.find('i') is not None:
                conjug.append((pers, term.find('i').text))
            else:
                conjug.append((pers, ''))
    return conjug
