How to Say "i cause" in Spanish
The most common Spanish word for “i cause” is “hago” — use 'hago' when you are the direct agent or reason for a specific action or result to occur. It implies you are actively making something happen..
hago
/AH-go//ˈa.ɣo/

Examples
Con mis chistes, siempre hago reír a mis amigos.
With my jokes, I always make my friends laugh.
Si no llamo a mi madre, la hago preocuparse.
If I don't call my mom, I make her worry.
The 'Hacer' + Verb Pattern
To say you 'make someone do something,' use this easy pattern: 'hago' + [the person] + [the action verb in its original '-ar', '-er', or '-ir' form]. For example: 'Hago correr al perro' (I make the dog run).
doy
/doy//doi̯/

Examples
Con mis chistes, le doy risa a todo el mundo.
With my jokes, I make everyone laugh.
Me doy cuenta de que es tarde.
I realize that it's late.
Le doy un golpe a la mesa sin querer.
I hit the table by accident.
Reflexive Use: 'Darse'
Sometimes you'll see 'me doy'. This is from 'darse', a version of 'dar' that reflects the action back on 'me'. The phrase 'me doy cuenta' (I realize) is extremely common and means the realization is happening to me.
Hago vs. Doy: Causing Actions vs. Causing Feelings
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.

