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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_workflow_status_change_verb(status):
 """Give the correct verb conjugation depending on status tense. :param status: String which represents the status the workflow changed to. """

    verb = ''
    if status.endswith('ing'):
        verb = 'is'
    elif status.endswith('ed'):
        verb = 'has been'
    else:
        raise ValueError('Unrecognised status {}'.format(status))

    return verb