Помогите, прошу! Find the mistakes-…

Я не мастер английского, но вроде бы так) 1.For the conference a few days ago Philip would never come back to his native city.2.For your laziness, some of the work would have been much better.3.If only they had had a pet now.4.If I knew the truth then.5.If it did not rain yesterday,we would enjoyed the trip more.6.If it had been summer, there would have been a lot of flowers in the country.7.For my parents I would not visited Paris last year.8.For my mother is telephone call,I would have worried now.9.It nad been summer now.10.If only I visited Great Britain last year.11.If my friend told me the truth then,I would forget the whole story.12.If I had had enough time now,I would have worked on the computer.