All modal verbs are auxiliary verbs, which means they can only be used with a main verb. Modal verbs cannot be a main verb. They are used to express ideas such as possibility, prediction, speculation, deduction and necessity.
Formas de saludar, despedirse, agradecer, elogiar... ¡Muy completo!
Chart demonstrating prepositions of Place in English
Asking the way in English and giving directions - learn English,vocabulary,communication,english