Her children often come to visit her. The negative of this statement is. Her children don't often come to visit her.
Her children seldom come to visit her.
Her children never come to visit her.
Her children frequently come to visit her.​

The details that best show evidence of tribal traditions are, "never in the history of his people had a man married a woman who spoke a different tongue” and "it has never been heard," was the verdict of an old man speaking a few weeks later.