1.  He didn't speak English.

2.  When he saw his brother, he ask him: "I can't speak English.

3.  First, we cannot speak English with our language order .

4.  Though we seem to have master the basic language structure, we can't speak English well.

5.  Don't speak with strangers.

6.  ' grandpa just couldn't speak.

7.  They can't speak English fluently.