Es.
You are Calibus.
You probably mean ludis ergo es, which means "you play, therefore you are" (singular "you"). Ludes is "you will play".
quis es means "who are you?"
The plural of the monotreme mammal is normally platypusesnot platypi. It is not of the same Latin form as radius or alumnus, and even some Latin plurals use -es in English.
Tu es in french translates to latin as just 'es'. In latin I am is just sum; ego sum is tautological. Similarly 'you(singular) are' is not written 'tu es'.
es- you are (singular) estis- you are (plural)
"Sharp edge or point" is an English equivalent of the Latin word aciēs. The feminine, fifth declension noun also translates less literally as "battle," "battle line" or engagement" in English. The pronunciation will be "A-kih-es" in classical Latin and "A-tchyes" in Church Latin.
Latin men es fervens
The Latin for "you are" is the second person singular present active indicative form of the verb sum, which is es.
es means is
Quisne es?