雨
The rain is heavy.
雨が激しいです
The rain is suddenly heavy.
急に雨が激しいです
The rain is suddenly heavy by the river.
川辺で急に雨が激しいです
The rain is suddenly heavy by the river on weekends.
週末に、川辺で急に雨が激しいです
The rain is suddenly heavy by the river especially on weekends.
特に週末に、川辺で急に雨が激しいです