Learn Latin from the Romans A Complete Introductory Course Using Textbooks from the Roman Empire

The key element of every sentence, both in English and in Latin, is a verb: a word indicating the action described by the sentence (e.g. ‘go’, ‘is’, ‘learn’, ‘eat’). English verbs can be identified by the way they inflect (change shape): a word to which ‘-ed’ and ‘-ing’ can be added is a verb. Thus ‘learn’ can be identified as a verb because of the forms ‘learned’ and ‘learning’. Likewise, if you put a verb after ‘they’ and then replace the ‘they’ by ‘he’, you will usually find that the verb then gets an ‘-s’ at the end. Thus ‘they eat’ → ‘he eats’, ‘they learn’ → ‘he learns’, etc.