The subjunctive is the tense that makes learners want to quit. Not because it's hard to form — most subjunctive endings are predictable — but because nobody can tell you when to use it. Textbooks hand you a list of forty "trigger expressions" and wish you luck.

There's a much better way to hold it in your head: WEIRDO. Six letters, six categories, and suddenly those forty triggers are just examples of six ideas.

Part of the series French Conjugation Memory Tricks.

What WEIRDO stands for

The subjunctive shows up when the main clause expresses one of these, then hits a que:

Letter Category Typical triggers
W Wishes / will vouloir que, désirer que, souhaiter que, aimer que
E Emotions être content/triste/surpris que, avoir peur que, regretter que
I Impersonal expressions il faut que, il est important que, il vaut mieux que, il est possible que
R Recommendations / requests suggérer que, recommander que, demander que, proposer que
D Doubt / denial douter que, ne pas penser que, ne pas croire que, il n'est pas sûr que
O Orders exiger que, ordonner que, vouloir que (command sense)

Read it as a sentence: a Wish, an Emotion, an Impersonal expression, a Recommendation, Doubt, or an Order. If your main clause is doing one of those six things, get ready for the subjunctive.

The two-part test

WEIRDO alone isn't the whole rule. The subjunctive needs both of these at once:

  1. A WEIRDO trigger in the main clause, and
  2. que linking it to a second clause with a different subject.

Je veux (W — wish) que tu viennes. (I want you to come — different subjects: je / tu → subjunctive: viennes.)

If both subjects are the same, French skips the subjunctive and uses an infinitive instead:

Je veux venir. (I want to come — same subject, no que, no subjunctive.)

So the trigger sets up the mood, but it's the que + subject change that pulls the trigger.

The most important thing WEIRDO teaches: what's NOT subjunctive

Here's the trap that catches everyone. que does not automatically mean subjunctive. When the main clause expresses fact or certainty, you use the indicative, not the subjunctive:

Indicative (fact/certainty) Subjunctive (WEIRDO)
Je sais que tu viens Je veux que tu viennes
Il est certain que… vient Il est possible que… vienne
Je pense que… vient Je ne pense pas que… vienne

That last row is the famous one: penser and croire take the indicative when positive (you're asserting it's true) but flip to subjunctive when negative or questioned (now there's doubt — the D of WEIRDO). WEIRDO doesn't just tell you when to use the subjunctive; it tells you the subjunctive is about subjectivity — will, emotion, doubt — never plain fact.

Forming it (the quick version)

Once WEIRDO tells you to use the subjunctive, forming it is mostly regular:

  • Stem: take the ils present form, drop -entils parlentparl-.
  • Endings: -e, -es, -e, -ions, -iez, -ent.
  • Irregulars to memorize: être, avoir, aller, faire, pouvoir, vouloir, savoir, falloir (il faille) — the usual high-frequency suspects from the survival 4.

Note the nous/vous subjunctive forms look just like the imparfait (que nous parlions) — one less thing to learn.

Drill plan

  1. Memorize the word WEIRDO and what each letter means. Say it as a sentence until the six categories are reflexive.
  2. Run the two-part test on every trigger: is there a WEIRDO meaning and a que with a new subject?
  3. Practice the indicative contrasts (je sais que vs je veux que) so que alone never fools you.
  4. Type full sentences, not isolated forms — the subjunctive only makes sense inside its clause.

When you're ready for the exhaustive set of triggers, keep the French subjunctive trigger list handy — but lead with WEIRDO. The list is the what; WEIRDO is the why that makes the list memorable.

FAQ

What does WEIRDO stand for in French?

WEIRDO is a mnemonic for the situations that trigger the French subjunctive: Wishes, Emotions, Impersonal expressions, Recommendations (and requests), Doubt (and denial), and Orders. If a main clause expresses one of these and is followed by que, the verb in the second clause usually goes into the subjunctive.

How do you know when to use the subjunctive in French?

Look for two things together: a trigger from the WEIRDO categories (a wish, emotion, impersonal expression, recommendation, doubt or order) AND the word que linking two clauses with two different subjects. When both are present, the verb after que goes subjunctive: Je veux que tu viennes.

Does que always trigger the subjunctive?

No. Que is necessary but not sufficient. Que after a statement of fact or certainty (je sais que, il est certain que, je pense que) takes the indicative, not the subjunctive. The subjunctive needs que PLUS a WEIRDO trigger expressing will, emotion or doubt, not plain fact.