Past Modals & Speculation — Resumo Gramatical
Nível: Inglês B2 · Tópico: must have · can't have · might / could have · should have
Regras Principais
- Certeza (90%+): must have / can't have + particípio
- Possibilidade (50%): might / could have + particípio
- Arrependimento: should / shouldn't have + particípio