La mayoría de los verbos en Inglés son Regulares, es decir forman el Pasado y el Participio añadiendo la terminación _ed al infinitivo.
Pero hay otros verbos que no siguen esta regla y tienen formas distintas para el Pasado y el Participio.
A estos verbos se les llama Irregulares y precisamente por su irregularidad es más difícil aprenderlos.
Conviene recordar que, en español, el Participio de todos los verbos siempre termina en -ado, -ido, -to o -cho (am-ado, tem-ido, part-ido, pues-to, escri-to, di-cho, he-cho) y se utiliza, junto con el auxiliar Haber, para la formación de los tiempos compuestos.
| Español | Infinitive | Past | Participle |
|---|---|---|---|
| Aprender | Learn | Learnt | Learnt |
| Beber | Drink | Drank | Drunk |
| Caer | Fall | Fell | Fallen |
| Cantar | Sing | Sang | Sung |
| Comer | Eat | Ate | Eaten |
| Comprar | Buy | Bought | Bought |
| Conducir | Drive | Drove | Driven |
| Correr | Run | Ran | Run |
| Cortar | Cut | Cut | Cut |
| Costar | Cost | Cost | Cost |
| Crecer | Grow | Grew | Grown |
| Dar | Give | Gave | Given |
| Decir | Say | Said | Said |
| Decir,contar | Tell | Told | Told |
| Deletrear | Spell | Spelt | Spelt |
| Despertarse | Awake | Awoke | Awoken |
| Dibujar | Draw | Drew | Drawn |
| Dormir | Sleep | Slept | Slept |
| Elegir | Choose | Chose | Chosen |
| Empezar | Begin | Began | Begun |
| Encontrar | Find | Found | Found |
| Enseñar | Teach | Taught | Taught |
| Entender | Understand | Understood | Understood |
| Enviar | Send | Sent | Sent |
| Escribir | Write | Wrote | Written |
| Ganar | Win | Won | Won |
| Gastar | Spend | Spent | Spent |
| Golpear | Strike | Struck | Struck |
| Haber,Tener | Have | Had | Had |
| Hablar | Speak | Spoke | Spoken |
| Hacer | Do (Does) | Did | Done |
| Español | Infinitive | Past | Participle |
|---|---|---|---|
| Hacer | Make | Made | Made |
| Herir | Hurt | Hurt | Hurt |
| Ir | Go (Goes) | Went | Gone |
| Leer | Read | Read | Read |
| Llamar | Ring | Rang | Rung |
| Morder | Bite | Bit | Bitten |
| Mostrar | Show | Showed | Shown |
| Nadar | Swim | Swam | Swum |
| Obtener | Get | Got | Got |
| Oir | Hear | Heard | Heard |
| Oler | Smell | Smelt | Smelt |
| Pagar | Pay | Paid | Paid |
| Pensar | Think | Thought | Thought |
| Perder | Lose | Lost | Lost |
| Perdonar | Forgive | Forgave | Forgiven |
| Permitir | Let | Let | Let |
| Prestar | Lend | Lent | Lent |
| Quemar | Burn | Burnt | Burnt |
| Robar | Steal | Stole | Stolen |
| Romper | Break | Broke | Broken |
| Saber | Know | Knew | Known |
| Sangrar | Bleed | Bled | Bled |
| Sentarse | Sit | Sat | Sat |
| Sentir | Feel | Felt | Felt |
| Ser o Estar | Be | Was (Were) | Been |
| Soñar | Dream | Dreamt | Dreamt |
| Traer,llevar | Bring | Brought | Brought |
| Vender | Sell | Sold | Sold |
| Venir | Come | Came | Come |
| Ver | See | Saw | Seen |
| Volar | Fly | Flew | Flown |