55 essential verbs
C_Conjugateacabar turn out (well, badly), accomplish (a task), come to an end, complete, conclude, end, finish, stop, end up (dead, drunk, injured, etc.) andar amble, fare (well or poorly), step, walk, function, run, run (as a machine), go, tread aprender learn, acquire (knowledge, etc.) caer fall, tumble, drop, droop, be located (said of a city, region), be situated (said of a city, region), hang down caerse fall, fall down, take a spill, collapse cantar chant, sing, sing of comenzar begin, commence, start comer eat, feed on comprar buy, purchase conducir conduct, drive, direct, pilot, guide, steer, convey conocer be acquainted with, meet, know construir build, construct contar count, relate, tell, number, narrate creer believe, credit, deem, think dar give, grant, render, deliver, hand (to someone), confer deber owe, have to, be obliged to decir say, said, call (name), speak dormir sleep, slumber, stay overnight entrar enter, come or go in, bring or show in escribir spell, write estar be estudiar study, examine carefully gustar be pleasing, like, please haber have hablar make a speech, speak, talk, converse hacer do, make ir go, come irse depart, fly away, go, go away, go off, leave, move leer read llamar name (someone or something), call (by telephone), telephone, ring, summon, knock or ring at the door llamarse be named, be called, answer to the name of, call oneself llevar carry, bear, take, convey, wear (clothes), carry (Math. a number) mirar look, look at, view, watch, glance, behold mirarse look like, seem oír hear, listen to, listen pagar pay, pay for, ante up, atone for pensar have an opinion (about something), think, think over, intend, cogitate perder lose, mislay, misplace poder be able, be possible, may, can poner place, put, set, lay (an egg, etc.), arrange ponerse put on (clothes), become, become (an emotion), start (doing something), set (of the sun) quedarse continue (doing something), remain, stay, keep on (doing something) querer like, wish, desire, love, want, will, be willing (to do) saber know (to know information), find out, can (to know how), taste (tener sabor) salir exit, go away, go out, head out, leave, come up, depart, get out, appear, emerge, lead (cards, etc.), result sentir feel, regret, sense, perceive, be sad about, deplore sentirse be moved, be sorry, feel sorry for, feel ser be tener have, hold, possess, contain, own, take tomar take, take on, take hold of traer bring, draw, drawn, fetch, carry (bring) venir come, come to pass, fit, arrive, arrive (of a season or time) ver behold, look at, see, observe vivir live volver come back, go back (return), return (come back), give back, turn, turn upside down or inside out, change (become)The verbs in this list have been chosen because they are useful for reviewing essential conjugations, tricky spelling changes, and common usage. Pairs of verbs such as ir and irse have been included to illustrate the difference between a reflexive and a non-reflexive verb.
A carefull review of the verbs on this list will help you to conjugate just about any verb you come across and to express yourself in correct idiomatic Spanish.