-ir and -er ending verbs are very similar in their endings when they are conjugated. How do they differ in their endings when they are conjugated? (4 points)

- The main difference between -ir and -er ending verbs is in the third person singular form of the present tense. -ir verbs end in -e, while -er verbs end in -e.

For example:
- In the verb "vivir" (to live), the third person singular form is "él/ella vive" (he/she lives).
- In the verb "comer" (to eat), the third person singular form is "él/ella come" (he/she eats).

- Another difference is found in the second person plural form of the present tense. -ir verbs end in -en, while -er verbs end in -éis or -en.

For example:
- In the verb "escribir" (to write), the second person plural form is "vosotros escribís" (you all write).
- In the verb "beber" (to drink), the second person plural form is "vosotros bebéis" (you all drink) or "ustedes beben" (you all drink).

- Additionally, in the simple past (preterit) tense, -ir verbs have different endings compared to -er verbs.

For example:
- In the verb "abrir" (to open), the preterit form is "abrió" (he/she opened).
- In the verb "correr" (to run), the preterit form is "corrió" (he/she ran).

- Finally, in the past participle form, -ir verbs end in -ido, while -er verbs end in -ido or -ido.

For example:
- The past participle of "decir" (to say) is "dicho" (said).
- The past participle of "leer" (to read) is "leído" (read).

These are some of the main differences in the endings when conjugating -ir and -er verbs.