1. rain
It may rain.
The rain stopped just long enough for me to dash into the cafe without getting wet.
I had to take a taxi because the heavy rain caused all the trains to stop.
Tomorrow's weather should be sunny with occasional rain.
As food and drink is to animals, so are rain and sunshine to plants.
Acid rain is not a natural phenomenon.
I read in the newspaper recently that the crops really need rain.
It's out of stock, but I can give you a rain check.
Rugby is a sport which is never called off by rain.
All of a sudden, large drops of rain began falling from the dark sky.
The children chanted, "Rain, rain go away. Come again another day."
Brazil has one-third of the world's rain forests.
It looks like it may rain today. I'm worried that our cherry-blossom-viewing party might be canceled.
Rain or shine, I will come to meet you at the station.
Rather than doing any good, the rain did a great deal of harm to the crop.
2. raining
It's raining.
We will start at two o'clock if it has stopped raining by that time.
I was walking in the park with a friend of mine when it started raining.
As soon as it stopped raining a beautiful rainbow appeared.
Avoid crossing this street when it is raining.
With it raining like this, we'll never be able to leave.
The wind was blowing violently, and to make matters worse, it began raining.
Anyway, if it just stops raining, then we might be able to go out.
It left off raining and we managed to finish our game of tennis.
There is bad weather. There it's cold and raining.
I needn't have watered the flowers. Just after I finished, it started raining.
When it continues raining cats and dogs for a long while, laundrymen have a hard time doing their work.
It's raining again. I wonder if we will be able to have the February snow festival?
It was raining when I woke up, but by afternoon the sky had cleared up and the sun was shining.
It was raining, and Joe's long hair was completely wet by the time he got home.
3. it's raining
Oh no, it's raining.