"Perhaps," and "It is possible," and "It may be."
The formulae "Perhaps," and "Perhaps not," and "It is possible," and "It is not possible," and "It may be," and "It may not be," we use instead of "Perhaps it is," and "Perhaps it is not," and "It is possible that it is," and "It is possible that it is not," and "It may be that it is," and "It ma