» For AR regular verbs you just replace the a with an e.
» For ER & IR regular verbs you just replace the e with an a.
-ar regular verbs
falar ➜ fale
Me fale tudo!
Tell me everything!
Pense bem!
Think about it!
-er and -ir regular verbs
responder ➜ responda
Me responda!
Answer me!
Suma daqui!
Get out if here!
Some very common examples use the TU form (read the post for more explanation):
esperar » Me espera! (Wait for me!)
olhar » Olha só! (Just look!)
escutar » Escuta! (Listen!)
tirar » Tira sua mão! (Hands off!)
falar » Fala tu! (Talk to me!)
ligar » Me liga! (Call me!)
ter » Vem cá! (Come here!)
Several of these are commonly conjugated using the regular, not the “tu” form, and when they are their forms are often irregular!