Usually Amy ( ) to school at 7:00 in the morning.It is 7:00

Usually Amy ( ) to school at 7:00 in the morning.It is 7:00 now,and she is ( )to school.
还有:It usually (snow)in winter in Cacada.和Sometimes I go (climb) mountains on Saturdaymorning.这两句对吗?
不是频率副词后没有人称的变化吗？