1. I didnt take my umbrella with me, because I couldn't find it.
2. A: Can you speak German?
B: Yes, I can.
A: But you couldn't speak German five years ago.
B: No, but I studied in Germany for a year.
3. I can't buy this dress. It's very expensive.
4. My father could play football very well when he was young,
but now he can't.