Answers (in order):
devolven, recordo, almorzas, podemos, mostro, encontra, resolven, costa, moven, conta, volves, probamos, morin, dormi, podo contan, encontrais, almorzan.
For present tense conjugations, the verb differs based on the subject. Here's a table, using the example verb bailar (to dance)
Yo (I) --> bailo
Tú (You) --> bailas
El/Ella/Usted (He/she/You (formal)) --> baila
Nosotros (We) --> bailamos
Vosotros (You all (informal)) --> bailais
Ellos/Ellas/Ustedes (They/They (girls)/You all (formal)) --> bailan
Note: This table is for bailar, an -ar verb. The same rules apply for -er verbs like correr, or -ir verbs like vivir.
Hope this helps!