tu dois you must cela (ca) that as in "That is impossible" ce this or that or it or those il it un/une/des a or any or some le or la the du or de some or any mon/ma/mes my ton/ta/tes your son/sa/ses his/hers/its notre/notre/nos our votre/votre/vos your (plural) leur/leur/leurs their ce(cet)/cette/ces this/that/these une one deux two trios three quatre four cinq five six six sept seven huit eight neuf nine dix ten onze eleven douze twelve treize 13 quatorze 14 quinze 15 seize 16 dix-sept 17 dix-huit 18 dix-neuf 19 vingt 20 vingt-et-un 21 vingt-deux 22 trente 30 quarante 40 quinze 50 soixante 60 soixante-dix 70 soixante et onze 71 soixante douze 72 quatre-vingts 80 quatre-vingt-un 81 quatre-vingt-dix 90 cent 100 mille 1000 certains/certaines certain or some chaque each or every different/differentes various divers/diverses varous quelques a few or some plusieurs several tout all a to de of or from aprex/avant after/before avec/sans with/without pour/contre for/against depuis/pendant for or since/for or during sur/sous about on or over/under devant/derrier in front of/behind entre/parmi between/among dans/en in/while que that quand/lorsque when parce que because si if des que/aussitot que as soon as puisque since or because pendant que while