private void BecomeAdverbPhrase()
{
AdverbPhraseBuilder adverbPhrase = new AdverbPhraseBuilder();
Parent?.ReplaceChild(this, adverbPhrase);
MoveChildrenTo(adverbPhrase);
}
/// <summary>Transform this AdverbBuilder into an AdverbPhraseBuilder with this as its head.</summary>
internal AdverbPhraseBuilder AsAdverbPhrase()
{
AdverbPhraseBuilder result = new AdverbPhraseBuilder();
Parent?.ReplaceChild(this, result);
result.AddHead(this);
return(result);
}