10. Если бы Хелен знала адрес, она

10. Если бы Хелен знала адрес, она бы уже пришла к этому времени.
11. Я пошлю ему телеграмму, если он завтра не приедет.
12. Костер не погас бы, если бы мы подбрасывали в него дрова.

Результаты (английский) 1:

10. If Helen knew the address, she would have come to that time. 11. I'll send him a telegram if he won't come tomorrow. 12. Bonfire not snuffed out would be like if we they tossed up into it.

Результаты (английский) 2:

10. If Helen knew the address, she would have come to that time.
11. I'll send him a telegram, if he does not come tomorrow.
12. The fire would have gone out if we threw in his firewood.

Результаты (английский) 3:

10. if helen knew the address, she would have arrived by this time.11. i'll send him a telegram, if tomorrow comes.12. the fire burns out, if we are going into the wood.