In English speaking countries, provide the difference between the number of countries with republic and constitutional monarchy as its government form.
English speaking refers to Language = 'English' ; difference = SUBTRACT(COUNT(Language = 'English' WHERE GovernmentForm = 'Republic'), COUNT(Language = 'English' WHERE GovernmentForm = 'ConstitutionalMonarchy'));
SELECT COUNT(T1.GovernmentForm = 'Republic') - COUNT(T1.GovernmentForm = 'ConstitutionalMonarchy') FROM Country AS T1 INNER JOIN CountryLanguage AS T2 ON T1.Code = T2.CountryCode WHERE T2.Language = 'English'