Почему трудно вынуть гвоздь из мокрой доски?

1/ I usually get up at 7:00 a.m. in the morning. - нельзя
2/ I'm cleaning my teeth now. 
3/ I'm making my bed in this moment. 
4/ I'm listening to music in the moment. 
5/ I'm having breakfast now.

1/ He usually gets up at 7:00 a.m. in the morning. - нельзя
2/ She is cleaning her teeth now. 
3/ He is making his bed now. 
4/ She is listening to music at the moment. 
5/ He is having  breakfast now.

1/ I don't get up at 7:00 a.m. in the morning. - нельзя
2/ I am not cleaning my teeth now. 
3/ I am not  making my bed now. 
4/ I am not  listening to music at the moment. 
5/ I am not having breakfast now.

1/ He doesn't get up at 7:00 a.m. in the morning. - нельзя
2/ She isn't  cleaning her teeth now. 
3/ He  isn't  making his bed now.  
4/ She  isn't listening to music at the moment.  
5/ He  isn't  having breakfast now.