In spanish why are the present tents verbs for to compete considered to be stem-changing verbs

Unscramble the word and write the vocabulary word correctly. imeersp

Ineed with spanish homework. translation of task: 11. fill out with the correct form of estar or hay 12. fill in fill with the verbs hay, estar and ser.

Selecule collecl diiswel which sentence correctly describes the image? a. el cuchillo está debajo de la servilleta b. el tenedor está a la derecha del plato. c. el plato está entre el cuchillo y el tenedor. d. el tenedor y el cuchillo está sobre el plato