Relacionar Columnas INFINITIVES Versión en línea 1st grade JH por Zyanya Rioja 1 You should 2 it is forbidden 3 We use Infinitives without the word to when they come after modals: 4 There are three uses of the word to before the Infinitive: 5 Infinitives have two forms: Can, could, may, might, shall, would, should, and must. 1. To indicate an intention 2. After specific main verbs like agree, forbid, fail, begin, choose, decide, prepare, try, want, etc. 3. After specific adjectives with to before the verb, and without to. to play in the park right now. study to get a 10 at the exam.