"Suggest" is to offer an idea informally; "propose" is to present a formal proposal or to make a marriage proposal.
To offer an idea, recommendation, or possibility. Informal, without strong commitment from the speaker.
I suggest we take a break and come back to this tomorrow.
Sugiero que tomemos un descanso y volvamos a esto manana.
Can you suggest a good restaurant near here?
¿Puedes sugerir un buen restaurante cerca de aqui?
The data suggests that sales will improve next quarter.
Los datos sugieren que las ventas mejoraran el proximo trimestre.
To present a formal plan or official proposal, or to make a marriage proposal.
He proposed a new strategy to the board of directors.
El propuso una nueva estrategia a la junta directiva.
She proposed to him on their anniversary. He said yes.
Ella le propuso matrimonio en su aniversario. El dijo que si.
The committee proposed several amendments to the law.
El comite propuso varias enmiendas a la ley.
Common mistake
Using "propose" for everyday suggestions: "I propose we eat pizza tonight" sounds very formal and slightly odd for a casual decision. "I suggest we eat pizza" is natural. The reverse: "He suggested to marry her" sounds informal and ambiguous — "He proposed to her" is the correct phrase for a marriage proposal.
Trick to remember it
Formality indicator: if you are in a work meeting discussing an official strategy or plan, "propose" is correct. For a casual conversational idea, "suggest". A marriage proposal is always "propose" — "He suggested marriage" exists but sounds cold and does not imply the classic romantic gesture.
Quick rule
Suggest = suggest (informal, everyday). Propose = formally propose (official context) or propose marriage.
Did you know?
Grammatically, "suggest" cannot be followed by "to + infinitive": "I suggest to go" is wrong. Correct: "I suggest going" (gerund) or "I suggest that we go" (that-clause). "Propose" can take the infinitive: "I propose to change the policy." Many native speakers make the error of "suggest + to + infinitive" — it is one of the most common grammar mistakes even among advanced speakers.
Exercise 1 · Pick the right one
The consultant _____ a complete restructuring of the department.
Exercise 2 · Pick the right one
He got down on one knee and _____ to her at sunset on the beach.
Exercise 3 · Form the word
Suggest = suggest (informal, everyday). Propose = formally propose (official context) or propose marriage.
Using "propose" for everyday suggestions: "I propose we eat pizza tonight" sounds very formal and slightly odd for a casual decision. "I suggest we eat pizza" is natural. The reverse: "He suggested to marry her" sounds informal and ambiguous — "He proposed to her" is the correct phrase for a marriage proposal.
Formality indicator: if you are in a work meeting discussing an official strategy or plan, "propose" is correct. For a casual conversational idea, "suggest". A marriage proposal is always "propose" — "He suggested marriage" exists but sounds cold and does not imply the classic romantic gesture.
Bryan López
Founder of SpeakUP Academy