How to use several forms of weather in English? Like rain, rain, rain.

1. I think it will rain today. It will rain today (in the future).

It often rains in Hong Kong [present tense]; It's raining now. ...

It has been raining all week. (past tense)

Another meaning of "rain": rockets, mortars and artillery aimed at buildings (bullets rained down like rain.

B. noun: rain

1. Stand outside in the rain, you will get wet.

It didn't rain yesterday. We had to have a flood because of the heavy rain last week.

C. adjective: rainy day

1. Rainy days; Rainy season; Rainy weather.

Tourists will not go to Guilin in rainy season.