"Make" means to force or cause something to happen; "let" means to allow or permit something to happen.
Causative verb. To force, compel, or cause someone to do something or something to happen. Implies pressure, authority, or direct causation. Structure: make + person + bare infinitive (no "to").
The cold weather made everyone want to stay inside.
El clima frio hizo que todos quisieran quedarse adentro.
She made her children clean their rooms before playing.
Ella hizo que sus hijos limpiaran sus cuartos antes de jugar.
That movie made me cry.
Esa pelicula me hizo llorar.
Causative verb. To permit, allow, or give freedom to someone to do something. No pressure; there is permission or absence of obstacles. Structure: let + person + bare infinitive (no "to").
Her parents let her stay up late on weekends.
Sus padres la dejaban quedarse despierta hasta tarde los fines de semana.
Let me help you carry those bags.
Dejame ayudarte a cargar esas bolsas.
Do not let the cat go outside at night.
No dejes que el gato salga afuera de noche.
Common mistake
Common error: adding "to" after the object. "She made me to cry." Wrong. "She let me to go." Wrong. Both causative verbs use the bare infinitive (no "to"): "She made me cry." "She let me go." This is an important exception to the general rule where infinitives take "to." Other causative verbs with the same rule: "have" (have someone do), "help" (help someone do).
Trick to remember it
Make = force/cause (there is pressure or causation). Let = allow/permit (there is permission or freedom). Both use a bare infinitive (no "to") after the object. Spanish parallel: "hacer + infinitivo" = make, "dejar + infinitivo" = let. "Me hizo reir" = "made me laugh." "Me dejo salir" = "let me go out."
Quick rule
Make + person + bare infinitive = force/cause. Let + person + bare infinitive = allow/permit.
Did you know?
"Allow" and "permit" are synonyms of "let" but more formal and use "to": "allow someone to do," "permit someone to do." And "have" is another causative: "I had the mechanic check my car" (you arranged for the mechanic to check it — no pressure, you just arranged it). "Get" also: "I got him to help me" (I persuaded him to help). Make > have > get > let in terms of level of control.
Exercise 1 · Pick the right one
The noise from the construction site _____ me lose my concentration all morning.
Exercise 2 · Pick the right one
Her manager _____ her leave early because she was not feeling well.
Exercise 3 · Form the word
Make + person + bare infinitive = force/cause. Let + person + bare infinitive = allow/permit.
Common error: adding "to" after the object. "She made me to cry." Wrong. "She let me to go." Wrong. Both causative verbs use the bare infinitive (no "to"): "She made me cry." "She let me go." This is an important exception to the general rule where infinitives take "to." Other causative verbs with the same rule: "have" (have someone do), "help" (help someone do).
Make = force/cause (there is pressure or causation). Let = allow/permit (there is permission or freedom). Both use a bare infinitive (no "to") after the object. Spanish parallel: "hacer + infinitivo" = make, "dejar + infinitivo" = let. "Me hizo reir" = "made me laugh." "Me dejo salir" = "let me go out."
Bryan López
Founder of SpeakUP Academy