она не вышла бы за него замуж, если

она не вышла бы за него замуж, если бы не была уверена в том, что это будет хороший брак

Результаты (английский) 1:

She would not marry him, if it was not sure that this would be a good marriage

Результаты (английский) 2:

she would not come out to marry him if she was not sure that it will be a good marriage

Результаты (английский) 3:

It has not come out to marry him, if you would not have been confident that this will be a good marriage