Verbs + à + noun

*acheter à* to buy from
*arracher à* to grab, tear away from
*aller à* to suit (someone)
*assister à (la réunion)* to attend (the meeting)
s’attendre à to expect (something)
*conseiller à* to advise
*convenir à qqun / qqch* to please, be suitable for s.o. / s.t.
*croire à* to believe something
*défendre à* to forbid
se délecter à to take delight in
*demander (qqch) à qqun* to ask someone (something)
*déplaire à* to displease / be displeasing to
*désobéir à* to disobey
*dire à qqun* to say / tell
*donner qqch à qqun* to give someone something
*écrire à quelqu’un* to write to someone
*emprunter qqch à qqun* to borrow something from s.o.
*envoyer qqch à qqun* to send something to someone
*être à* to belong to
*faire attention à* to pay attention to
faire confiance à to trust (someone)
faire mal à to hurt
faillir à to fail in / at / to
*se fier à (quelqu’un)* to trust (someone)
*goûter à quelque chose* to taste something
s’habituer à to get used to
*interdire (qqch) à qqun* to forbid someone (something)
s’intéresser à to be interested in
*jouer à* to play (a game or sport)
manquer à to miss someone
*mêler à* to mingle with / to join in
*nuire à* to harm
*obéir à* to obey
s’opposer à to oppose
*ordonner à* to order
*pardonner à* to pardon, forgive
*parler à* to talk to
*penser à* to think of / about*
*permettre à* to permit
*plaire à* to please / be pleasing to
*prendre à quelqu’un* to take from someone
prendre garde à to be careful of, watch out for
*procurer à quelqu’un* to obtain for someone
*profiter à* to benefit / be profitable to
*promettre à* to promise
*raconter à qqun* to tell someone
*rappeler à* to remind (someone)
*réfléchir à* to consider / reflect upon
*rendre visite à quelqu’un* to visit someone
*répondre à* to answer
*reprocher à* to criticize
*résister à* to resist
*ressembler à* to resemble
*réussir à l’examen* to pass the test
*rêver à* to imagine, dream of
*serrer la main à quelqu’un* to shake hands with someone
*servir à* to be used for/as
*songer à* to dream / think of
*sourire à* to smile at
*succéder à* to succeed, follow
*survivre à* to survive
*téléphoner à* to call
*voler (qqch) à qqun* to steal (something) from someone

* Penser à vs penser de

penser à- to think about ( in general) — je pense à toi.

penser de - to think about ( in sense of opinion ) — qu'est-ce que tu penses de ce livre?

However, some verbs/expressions don’t allow the replacement with iop ou y, instead requiring that the preposition be kept after the verb, followed by a stressed pronoun.

J’ai pensé à David.  —— J’ai pensé à lui.

I thought about David.  I thought about him.

Verbs + à + infinitive

Note that this construction may be equivalent to an English infinitive (e.g., to do) or a gerund (doing).

*aider à* to help to
s’amuser à to amuse oneself ___-ing
*apprendre à* to learn how to
s’apprêter à to get ready to
*arriver à* to manage / succeed in ___-ing
*aspirer à* to aspire/yearn to
*astreindre (qqun) à* to compel / force (someone) to
s’attendre à to expect to
*autoriser qqun à* to authorize / allow (someone) to
s’autoriser à to permit (oneself) to
*avoir à* to have to / be obliged to
*chercher à* to attempt to
*commencer à*** to start to / ___-ing
*consentir à* to consent to
*continuer à*** to continue to / ___-ing
*contraindre (qqun) à* to force / compel (someone) to
*décider (quelqu’un) à* to persuade (someone) to
se décider à to make up one’s mind to
*encourager à* to encourage to
s’engager à to get around to
*enseigner à* to teach to
s’épuiser à to exhaust oneself ___-ing
*forcer à* to force  to
s’habituer à to get used to
*hésiter à* to hesitate to

** Can also be followed by de with exactly the same meaning – see Verbs with à and / or de.