If it is unclear to the incumbent prime minister or premier who will be able to command a majority in the House of Commons or provincial legislature, they may delay advising the Governor-General or Lieutenant Governor as to a potential change of government, and may negotiate an agreement with non official opposition parties as to whether they will vote with a future government on questions of confidence and supply, and may even delay a final decision until the next House of Commons or Provincial Legislature sits, to let the House "test the numbers" by a formal vote in the House.
