rain

[henz988]

I was caught in ___ rain.

Rainfall is common in the region where I live. It rained this morning and I happened to be on my way home without an umbrella, so what about the following sentences?
Group A
1. I was caught in the rain.
2. I was caught in a rain.
3. I was caught in rain.

Group B
4. A rain was forecast for this morning, but I didn't take it seriously.
5. Rain was forecast for this morning, but I didn't take it seriously.
6. The rain was forecast for this morning, but I didn't take it seriously.

Many thanks in advance.

[engee30]

I was caught in ___ rain.

Rainfall is common in the region where I live. It rained this morning and I happened to be on my way home without an umbrella, so what about the following sentences?
Group A
1. I was caught in the rain.
2. I was caught in a rain.
3. I was caught in rain.

Group B
4. A rain was forecast for this morning, but I didn't take it seriously.
5. Rain had beenforecast for this morning, but I didn't take it seriously.
6. The rain was forecast for this morning, but I didn't take it seriously.

Many thanks in advance.