Language/French/Grammar/How-to-use-“et”-in-cardinal-numbers

How to use “et” in cardinal numbers

between 21 and 71 inclusive

"et" is used for cardinal numbers ending in -1 between 21 and 71 inclusive (note the absence of hyphens):

Number	Number in French
21	vingt et un
31	trente et un
41	quarante et un
51	cinquante et un
61	soixante et un
71	soixante et onze

between 81 and 101 inclusive

"et" is NOT used in numbers ending in -1 between 81 and 101 inclusive (note the use of hyphens in the case of 81 and 91), nor in 1 001, 1 000 001 and 1 000 000 001:

Number	Number in French
81	quatre-vingt-un
91	quatre-vingt-onze
101	cent un
1001	mille un
1 000 001	un million un
1 000 000 001	un milliard un

Other Chapters

Table of Contents

Nouns

• Types
• Gender
• Plural

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Determiners

• Articles
• Typical use of the definite article
• Typical use of the indefinite article
• The partitive article: du, de l', de la, des
• Use of indefinite and partitive articles after the negative forms ne... pas, ne... jamais, ne... plus, ne... guère
• Omission of the article
• Demonstrative determiners
• Possessive determiners

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Personal and impersonal pronouns

• Subject pronouns
• Object pronouns
• Stressed pronouns
• Demonstrative pronouns
• Possessive pronouns

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Adjectives

• Adjectives modifying the noun
• Adjectives which follow verbs or verbal expressions
• Adjectives with complements
• Indefinite and negative noun phrases with adjective complements
• Adjectives used as nouns
• Adjectives used as adverbs
• Masculine and feminine forms of adjectives
• Plural forms of adjectives
• Adjective agreement with nouns
• Invariable adjectives
• Compound adjectives
• Comparative and superlative forms of adjectives
• Subjunctive versus indicative in clauses dependent on a superlative adjective
• Absolute use of the superlative

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Adverbs

• Function of adverbs
• Formation of adverbs with the ending -ment
• Adjectives used as adverbs without addition of -ment
• Phrases used as adverbs
• English and French adverb formation
• Types of adverbs
• Location of adverbs

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Numbers, measurements, time and quantifiers

• Cardinal numbers
• Ordinal numbers
• Fractions
• Some differences in the use of cardinal and ordinal numbers in French and English
• Measurements and comparisons
• Dates, days, years
• Clock time
• Money
• Quantifiers

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Verb forms

• Conjugations
• Easy ways of generating some parts of the paradigms
• Changes in the stem form of some -er conjugation verbs
• Verbs whose stems end in c- or g-
• Verb paradigms

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Verb constructions

• Relations between verbs and their complements
• Intransitive constructions
• Directly transitive verbs
• Indirectly transitive verbs
• Ditransitive verbs
• The passive
• Pronominal verbs
• Impersonal verbs
• Verbs which take noun + adjective or noun + noun complements

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Verb and participle agreement

• Subject-verb agreement
• Agreement of the past participle with the subject of être
• Agreement of the past participle of verbs conjugated with avoir with a preceding direct object
• Agreement of the past participle of pronominal verbs in compound tenses

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Tense

• The present
• The past
• The future
• Other tenses indicating the time at which events occur relative to other events
• Combining tenses
• Tenses in direct and reported descriptions of events
• Tenses with si

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The subjunctive, modal verbs, exclamatives and imperatives

• The attitude of the subject to events: the subjunctive
• The use of devoir, pouvoir, savoir, falloir
• The French equivalents of the English modal verbs: 'would', 'should', 'could', 'may', 'might', 'ought to', and 'must'
• Exclamatives
• Imperatives

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The infinitive

• Introduction: what are infinitives?
• Infinitives as complements to other verbs
• Verbs which take infinitive complements without a linking preposition
• Verbs which take infinitive complements preceded by the preposition à
• Verbs which take an infinitive complement preceded by de
• Omission of objects before infinitives
• Infinitives as complements to adjectives
• Infinitives as complements to nouns
• Infinitives in subordinate clauses
• Infinitives as polite commands
• Quick-reference index to verbs taking infinitive complements

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Prepositions

• Introduction
• Prepositions listed alphabetically from à to vers
• French translations for common English prepositions

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Question formation

• Introduction
• Yes/no questions
• Information questions
• Order of object pronouns in questions involving inversion
• Order of negative particles in questions involving inversion
• Use of question words and phrases: qui?, que?, quoi?, quel?, de qui?, avec combien de? etc.
• Indirect questions

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Relative clauses

• Introduction
• Use of relative qui
• Use of relative que
• Preposition plus qui
• Use of lequel in relative clauses
• Use of dont, de qui, duquel/de laquelle/desquels/desquelles
• The use of où as a relative pronoun
• Use of relative quoi
• Free relative clauses and the use of ce qui, ce que, ce dont, ce à quoi, ce sur quoi, etc.
• Translating 'whoever', 'whatever', 'wherever', 'whenever', 'however'
• Indicative and subjunctive in relative clauses

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Negation

• Introduction
• Location of sentence negators
• Order of negators in multiple negation
• Omission of ne in sentence negation
• Order of negative elements in questions and imperatives
• ne... pas
• ne... que
• ne... aucun(e), ne... nul(le)
• ne... jamais
• ne... plus
• ne... guère
• ne... rien
• ne... personne
• ne... ni... ni
• sans used with other negators
• ne used alone

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Conjunctions and other linking constructions

• Introduction
• Coordinating conjunctions
• Subordinating conjunctions
• Conjunctions sometimes confused by English speakers
• Repeated subordinating conjunctions
• Subordinating conjunctions used with infinitive clauses
• après avoir/ être + past participle linking an infinitive clause to a main clause
• Past participle phrases used as linkers
• Present participles and gerunds

Other Lessons

• Impersonal Verbs
• How to recognize when the start of a relative clause is a direct object
• Negation
• Adverb—adjective compounds
• Coordination of subject pronouns
• Pronominal verbs and body parts
• Place adverbs
• encore VS toujours
• Inversion of subject and verb after some sentence initial adverbs
• Non agreement of direct object numerals with coûter, peser and mesurer
• Verb forms — Introduction
• Sentence modifying adverbs
• Subject verb agreement — Verb agreement with fractions
• Comparing neutral ce, cela, ça with personal il ils and elle elles
• Omission of plural indefinite des after the preposition de