Irregulars (1/2)
French: Cambridge International GCSE, topic 7.1.4
Irregular Conditional Stem
In the conditional tense, the irregular stems are the same as in the future tense. But you add the conditional endings.

Être - ser
- Je serais - I would be.
- Tu serais - you (singular) would be.
- Il/elle/on serait - he/she/one would be.
- Nous serions - we would be.
- Vous seriez - you (plural/formal) would be.
- Ils/elles seraient - they would be.

Avoir - aur
- J'aurais - I would have.
- Tu aurais - you (singular) would have.
- Il/elle/on aurait - he/she/one would have.
- Nous aurions - we would have.
- Vous auriez - you (plural/formal) would have.
- Ils/elles auraient - they would have.

Aller - ir
- J'irais - I would go.
- Tu irais - you (singular) would go.
- Il/elle/on irait - he/she/one would go.
- Nous irions - we would go.
- Vous iriez - you (plural/formal) would go.
- Ils/elles iraient - they would go.

Faire - fer
- Je ferais - I would do.
- Tu ferais - you (singular) would do.
- Il/elle/on ferait - he/she/one would do.
- Nous ferions - we would do.
- Vous feriez - you (plural/formal) would do.
- Ils/elles feraient - they would do.
Irregular Conditional Stem
In the conditional tense, the irregular stems are the same as in the future tense. But you add the conditional endings.

Voir - verr
- Je verrais - I would see.
- Tu verrais - you (singular) would see.
- Il/elle/on verrait - he/she/one would see.
- Nous verrions - we would see.
- Vous verriez - you (plural/forma) would see.
- Ils/elles verraient - they would see.

Devoir - devr
- Je devrais - I would have to.
- Tu devrais - you (singular) would have to.
- Il/elle/on devrait - he/she/one would have to.
- Nous devrions - we would have to.
- Vous devriez - you (plural/formal) would have to.
- Ils/elles devraient - they would have to.

Pouvoir - pourr
- Je pourrais - I would be able to.
- Tu pourrais - you (singular) would be able to.
- Il/elle/on pourrait - he/she/one would be able to.
- Nous pourrions - we would be able to.
- Vous pourriez - you (plural/formal) would be able to.
- Ils/elles pourraient - they would be able to.

Savoir - saur
- Je saurais - I would know.
- Tu saurais - you (singular) would know.
- Il/elle/on saurait - he/she/one would know.
- Nous saurions - we would know.
- Vous sauriez - you (plural/formal) would know.
- Ils/elles sauraient - they would know.

Vouloir - voudr
- Je voudrais - I would want.
- Tu voudrais - you (singular) would want.
- Il/elle/on voudrait - he/she/one would want.
- Nous voudrions - we would want.
- Vous voudriez - you (plural/formal) would want.
- Ils/elles voudraient - they would want.
Test yourself on Irregulars (1/2)
How do you say 'I would do' in French?
How do you say 'I would like' in French?