Якби вона мала вечірню сукню, то не

Якби вона мала вечірню сукню, то неодмінно пішла б.

Результаты (английский) 1:

If she had an evening dress, then surely would have gone.

Результаты (английский) 2:

If she had an evening dress, it certainly would have gone.

Результаты (английский) 3:

If she had evening dress, he would have left.