"One, two, three, four, five" in French?	Un (une before a feminine noun), deux, trois, quatre, cinq.
"Six, seven, eight, nine, ten" in French?	Six, sept, huit, neuf, dix. The p in sept is silent.
"Eleven to sixteen" in French?	Onze, douze, treize, quatorze, quinze, seize.
"Seventeen, eighteen, nineteen" in French?	Dix-sept, dix-huit, dix-neuf (literally ten-seven, ten-eight, ten-nine).
"Twenty-one" and "twenty-two" in French?	Vingt et un (with et), vingt-deux (with a hyphen). The 1990 spelling reform also allows vingt-et-un.
"Thirty, forty, fifty, sixty" in French?	Trente, quarante, cinquante, soixante.
"Seventy" and "seventy-one" in French?	Soixante-dix (sixty-ten). Soixante et onze (71), soixante-douze (72).
"Eighty" and "eighty-one" in French?	Quatre-vingts (four twenties). The s drops when a number follows: quatre-vingt-un (81).
"Ninety" and "ninety-nine" in French?	Quatre-vingt-dix (four twenties and ten). Quatre-vingt-dix-neuf (99).
"Seventy" and "ninety" in Belgium and Switzerland?	Septante (70) and nonante (90). Some Swiss regions also say huitante for 80.
"One hundred" and "one thousand" in French?	Cent, mille. No un in front: cent euros, mille personnes. Mille never takes an s.
"Monday, Tuesday, Wednesday, Thursday" in French?	Lundi, mardi, mercredi, jeudi. Days are masculine and written in lower case.
"Friday, Saturday, Sunday" in French?	Vendredi, samedi, dimanche.
"On Monday" vs "on Mondays" in French?	Lundi (this Monday) vs le lundi (every Monday). "Le lundi, je travaille."
"January to June" in French?	Janvier, février, mars, avril, mai, juin. Months are lower case in a sentence.
"July to December" in French?	Juillet, août, septembre, octobre, novembre, décembre. Août is pronounced "oo" or "oot".
"The 3rd of April" and "the 1st of May" in French?	Le trois avril. Le premier mai: only the 1st uses an ordinal.
"What time is it?" in French?	"Quelle heure est-il?" Answer: "Il est trois heures." Always include heures.
"It's half past two" in French?	"Il est deux heures et demie."
"It's quarter past four" and "it's quarter to five" in French?	"Il est quatre heures et quart." "Il est cinq heures moins le quart."
"Noon" and "midnight" in French?	Midi, minuit. "Il est midi et demi" (12:30).
"Today, yesterday, tomorrow" in French?	Aujourd'hui, hier, demain.
"Morning, afternoon, evening" in French?	Le matin, l'après-midi, le soir. "À huit heures du soir" means at 8 p.m.
"The week, the month, the year" in French?	La semaine, le mois, l'an or l'année. Use an with numbers (trois ans), année for duration (toute l'année).
"How old are you?" and "I'm twenty" in French?	"Quel âge as-tu?" "J'ai vingt ans." Age uses avoir, and ans is never dropped.