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to keep a promise

to keep a promise

5 2.5
Do what you say you will do for someone
  • phrasal verb
translation icon : cumplir una promesa
  • He was determined to keep a promise he made to his friend last year.

and if I can't keep a promise to myself

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Examples

Synonyms

to keep
vsto keep a promise
1.0

To do what you promised

is the multiword expression used when referring to a pledge to someone
to fulfill
vsto keep a promise
  • US
265 2.8

To do what is required or promised

is focused specifically on meeting a commitment made to a person
to follow through
vsto keep a promise
86 3.7

Continue and finish something you promised to do

is about meeting a commitment rather than focusing on ongoing effort
to make good
vsto keep a promise
70 3.9

To keep a promise

is the act of fulfilling a commitment given to another person
to make good on
vsto keep a promise
36 4.1

Keep a promise or pay what you owe

is focused on fulfilling a commitment made to another person
to hold to
vsto keep a promise
25 3.5

To stay loyal to a promise, plan or belief

is about completing a commitment to another person rather than staying loyal to ideas
to hold up one's end of the bargain
vsto keep a promise
  • Informal
7 4.4

Do what you promised in an agreement

is broader applying to any commitment not only formal agreements
to suit the action to the word
vsto keep a promise
7.7

Act in the same way you say you will

is about carrying out commitments rather than demonstrating verbal consistency

Antonyms

25 8.5

To break a promise or agreement and not do what you said you would do

To fail to do what you said you would do

How Trustworthy

to keep a promise
5 2.5

Surface Forms

keep a promise infinitive
keeping a promise present participle
keeps a promise third person singular
kept a promise past participle

Morphology

keep + a + promise

The meaning 'to do what you have promised' is directly compositional from 'keep' (to maintain/fulfill) + 'promise' (an assurance), and the indefinite article 'a' is semantically empty here. This is a common, cross-linguistically transparent collocation following normal verb + object patterns, so a B1 learner who knows the constituents should be able to infer the meaning.

Etymology

Keep a promise comes from the simple image of holding something safe. If you keep a promise, you treat your word like a small thing you must guard and not lose, so the phrase means 'to do what you promised'.