tratado
/trah-TAH-doh/
treaty
As a noun, "tratado" means 'treaty'—a formal agreement between states.
tratado(noun)
treaty
?formal agreement between states
,pact
?agreement
treatise
?a formal written work on a subject
📝 In Action
Los dos países firmaron un tratado de comercio la semana pasada.
B2The two countries signed a trade treaty last week.
El profesor publicó un tratado sobre la filosofía moderna.
C1The professor published a treatise on modern philosophy.
💡 Grammar Points
Masculine Noun
Even though it ends in '-o', remember that 'tratado' is a masculine noun, so it always uses 'el' or 'un'.
⭐ Usage Tips
Formal Context
Use 'tratado' when discussing international law, politics, or highly academic subjects. For simple personal agreements, use 'acuerdo'.
As a past participle, "tratado" means 'treated' or handled.
tratado(past participle)
treated
?handled or managed
,dealt with
?addressed a topic or problem
discussed
?as in 'topic discussed'
📝 In Action
Nunca hemos tratado este asunto antes.
A2We have never dealt with this matter before.
Ella fue tratada con mucho respeto por el personal.
B1She was treated with a lot of respect by the staff.
Los temas tratados en la reunión fueron muy importantes.
B1The topics discussed (or 'treated') in the meeting were very important.
💡 Grammar Points
Forming Perfect Tenses
Use 'tratado' with the verb 'haber' (to have) to create perfect tenses, like 'he tratado' (I have treated) or 'habías tratado' (you had treated).
Using it as an Adjective
When used to describe a noun (like 'el tema tratado'), it must agree in gender and number: 'la persona tratada' (feminine singular), 'los temas tratados' (masculine plural).
❌ Common Pitfalls
Using *Estar* Instead of *Haber*
Mistake: "Using 'estamos tratado' to mean 'we have treated'."
Correction: Always use a form of 'haber' (like 'hemos') to build perfect tenses: 'hemos tratado'. The verb 'estar' is used for temporary states.
⭐ Usage Tips
Regular Participle
'Tratado' is a regular past participle (it ends in -ado), which means it follows the standard pattern and is easy to remember.
✏️ Quick Practice
💡 Quick Quiz: tratado
Question 1 of 1
Which sentence uses 'tratado' as a noun (a formal agreement)?
📚 More Resources
Frequently Asked Questions
Is 'tratado' related to 'trato'?
Yes, they both come from the verb 'tratar'. 'Trato' is a noun meaning 'deal,' 'agreement,' or 'treatment/manner,' often used in less formal contexts than 'tratado' (treaty).
How do I know if 'tratado' is a noun or a verb form?
If it is preceded by an article (el, un, este) or refers to a specific document, it's the noun (treaty). If it follows a form of 'haber' (he, has, hemos, etc.) or is used with 'ser' or 'estar' to describe how something was handled, it is the past participle of the verb 'tratar'.