Le subjonctif ou l'indicatif?

Front

Il doute que la fille _______ du piano. (jouer)

Back

subjonctif: joue

Answer explanation

Je doute que signifies uncertainty, so use the subjonctif

Front

Je suis sûr que tu _____ la verité! (savoir)

Back

indicatif: sais

Answer explanation

Je suis sûr expresses near certainty or probability, so you do NOT use the subjunctive

Front

Nous désirons que vous ________ (réussir)

Back

subjonctif: réussissiez

Answer explanation

Désirer que expresses a situation that is desired, therefore, use the Subjonctif

Front

Il est important d'/de_______ (être) à l'heure!

Back

indicatif: être

Answer explanation

"il faut que" is followed by a preposition "de" = no subjunctive. Also, there is only one subject. Since it's the second verb, être is the correct UNCONJUGATED verb to follow the expression in this case.

Front

Il faut ________ (savoir) ça.

Back

indicatif: savoir

Answer explanation

"Il faut", in this case, is an impersonal expression... there is no second clause. If you notice, there is no "que" either. In this case, the second verb is left in the infinitive form.

Front

Je crois qu'il _______ (avoir) un chien.

Back

indicatif: a

Answer explanation

"Je crois" expresses near certainty or high probability, so it does NOT use the subjunctive.

Front

Je ne crois pas que vos parents _________ (faire) du ski.

Back

subjonctif: fassent

Answer explanation

"Je NE crois PAS" expresses disbelief, uncertainty or something that is not very probable. In this case, you do need the subjunctive.

Front

Il est étonnant que tu _________ (aller) en France cette année!

Back

subjonctif: ailles

Answer explanation

Because "il est étonnant que" expresses an opinion, and there are 2 clauses in the sentence w/ different subjects, you do need the subjunctive here.

Front

Il se peut que nous _________ (pouvoir) perdre ce match.

Back

subjonctif: puissions

Answer explanation

"Il se peut que" expresses a possibility, not a certainty, so it does use the subjunctive.

Front

Je pense que Lorraine __________ (être) à l'école.

Back

indicatif: est

Answer explanation

"Je pense que" (I think that) does NOT use the subjunctive, even though it expresses an opinion. HOWEVER, as a side note, if it was "je ne pense pas que", you would use the subjunctive. Crazy, right?