infinitives end in -ar, -er, or -ir.
verbs are conjugated in six different "people".
1st singular, 1st plural
2nd singular, 2nd plural
3rd singular, 3rd plural
the nosotrxs form of a verb always ends in -mos. always. in every tense, mood, etc, whatever.
the uds/ellxs form always always always ends in an n. -an, -en, or -on.
the vosotrxs form always ends in -is. -ais, -eis, or -is.
the ud/ellx form always ends in a vowel, either a or e.
the tú form almost always ends in an s. as or es. the exception is the preterist, which ends in aste or iste.
the yo form is usually the same as the ud/ella/él form. two exceptions, the preterite and the present indicative. in the preterite, it ends in e or i. in the present indicative, it usually ends in -o, with only six exceptions.
different forms or conjugations or whatever are
past indicative preterite
past indicative imperfect
future subjunctive (archaic, but awesome so I use it anyway)