def test_make_singular_7(self): assert make_singular('os') == 'os'
def test_make_singular_5(self): assert make_singular('analysis') == 'analysis'
def test_make_singular_6(self): assert make_singular('status') == 'status'
def test_make_singular_3(self): assert make_singular('assesses') == 'assess'
def test_make_singular_4(self): assert make_singular('checks') == 'check'
def test_make_singular_2(self): assert make_singular('bass') == 'bass'