Usages of cumplir
Desconfío de la gente que promete demasiado y luego no cumple nada.
I distrust people who promise too much and then do not keep anything.
Mi hermana siempre cumple su palabra.
My sister always keeps her word.
Aunque sea un poco perezosa los domingos, mi hermana siempre cumple su palabra y termina sus tareas.
Although she may be a bit lazy on Sundays, my sister always keeps her word and finishes her tasks.
Aunque mi jefa es exigente, tiene una actitud muy honesta y nunca promete lo que no puede cumplir.
Although my boss is demanding, she has a very honest attitude and never promises what she cannot keep.
Cumplimos la promesa.
We keep the promise.
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