When I'm talking to a foreigner. I understand what he's saying, but it is not easy to speak with me, he very quickly, because I don't know the terminology, so I need to practice surf vocabulary every day.
When I talk to foreigners. I understand what he was saying. But it's not easy, I will speak to him quickly. Because I do not know the terminology So I have to practice every day surfing terminology.
When I talk with foreigners. I understand what he said. But it is not easy to talk to him quickly, because I don't know the vocabulary. So I must practise reciting vocabulary every day.