Bonjour Madame Cécile !
Here are two sentences involving the verb “pleuvoir”->
1. Il est possible qu’il ________ (pleuvoir) ce matin.
2. Le bulletin météo prévoit qu’il _______(pleuvoir) demain.
Now, I would like to ask that in Case 1, it is quite identifiable that one would use Le Subjonctif Présent as there is a sense of doubt and uncertainty expressed in this sentence.The required conjugation would be “pleuve”.
In Case 2, the correct answer mentioned is “pleuvra” though I had written ‘pleuve’ as I interpreted it the same way as in the former case since the weather department always predicts and never ascertains the weather.
Having re-read the notes, I further question why can’t one use “pleuvra” (Le Futur Simple) in Case 1 then ?
I would request you to please highlight the grammatical concept behind the same.
Merci beaucoup et je vous souhaite une bonne journée !