Definición / Explicación
Usamos as ... as para decir que dos personas o cosas son iguales en algún aspecto. Usamos not as ... as para decir que no son iguales. El adjetivo va en medio: as tall as, as easy as, not as fast as. Esta estructura es diferente de comparativos como bigger o more expensive. Es útil cuando el foco está en la igualdad o diferencia en la misma cualidad.
Reglas clave
- Forma: as + adjective + as.
- Forma negativa: not as + adjective + as.
- No uses formas comparativas como bigger dentro de esta estructura.
- Úsala para comparar personas, cosas, lugares y situaciones.
- En inglés cotidiano, a menudo usamos pronombres objeto después de as: as tall as me, as fast as him.
Ejemplos
- She is as tall as me. - Ella es tan alta como yo.
- This bag is not as expensive as that one. - Esta bolsa no es tan cara como esa.
- My room is as quiet as yours. - Mi habitación es tan silenciosa como la tuya.
- He is not as busy as last week. - Él no está tan ocupado como la semana pasada.
- Today is as cold as yesterday. - Hoy hace tanto frío como ayer.
Errores comunes
- ❌ She is as taller as me. -> ✅ She is as tall as me.
- ❌ This bag is not as expensive than that one. -> ✅ This bag is not as expensive as that one.
- ❌ My room is as quiet than yours. -> ✅ My room is as quiet as yours.