📋 All the forms

Person	Full form	Short form ⚡
I	am	I'm
He / She / It	is	he's / she's / it's
You / We / They	are	you're / we're / they're

🕐 Use BE for

Height: tall, short, medium-height (ser alto/bajo)
Age: I'm 12. (edad y altura van con BE)
NOT for hair, eyes or glasses → those go with have got.

💡 Examples

I'm quite tall.
My grandad is short, but my dad's very tall.
My cousins are twins — they're medium-height, like me.

⚠️ Typical mistakes

✗ I have 12 years.✓ I'm 12. (la edad va con BE) ✗ She tall.✓ She's tall. (en inglés el verbo be nunca se omite) ✗ I'm brown hair.✓ I've got brown hair. (el pelo se TIENE → have got)