Verb + de + infinitive
il suffit
de
The constructions
deil suffit de + infinitif
Il suffit d'appuyer sur ce bouton.
Why
Il suffit de takes de before an infinitive, and il suffit que before a clause, in the subjunctive. Suffire à, with à, means « to be enough to »: cette somme suffit à payer le loyer.
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