In French, you will regularly encounter the subjunctive. This can be challenging, as we do not really have this verb form in English in the same way.

The subjunctive is used in a compound sentence: there is a main clause and a subordinate clause, which starts with the word ‘que’. In the main clause, you encounter a verb expressing a will or wish, a feeling, necessity, (im)possibility, or uncertainty.
Time for some example sentences!

I want them to pass their exams.
>> Je veux qu’ils réussissent leurs examens.

It is a pity that he cannot come to the party.
>> C’est dommage qu’il ne puisse pas venir à la fête.

It is necessary that we leave on time to catch the train.
>> Il est nécessaire que nous partions à temps pour attraper le train.

It is impossible that he has forgotten his keys.
>> Il est impossible qu’il ait oublié ses clés.

I doubt whether what she says is true.
>> Je doute que ce qu’elle dit soit vrai.

How do you translate these sentences?
I want you to come and help me.
We must go now.
It is a pity that you missed the performance.

You can read our previous explanation of the subjunctive here. You will also find the translation of the three sentences above at that location.