It is an "Usted" since you do not know the bus driver intimately and he/she is a singular person.
Poder Yo/ puedo tu/ puedes el, ella, ud./ puede nosotros/ podimos ellos, ellas, uds/ puedem
yo voy tu vas el ella Ud. va nosotros nostras vamos vosotros vostars vais ellos ellos Uds.
The key to the answer to your question is the word someone. Ud. is used when speaking with/to a single person. Uds. is used when speaking to a group of two or more people. You want to use Ud.
yo - o tu - as el, ella, ud. - a nosotros - somos uds. ellos - an
Translation: Use "tu" when you speak to me, not "Ud.". (Literally: Speak to me of "tu" not of "Ud.".)
the infinitive is estudiar: yo estudio nosotros estudiamos tu estudias vosotros estudais el ellos ella estudia ellas estudian ud uds. So your answer would be estudia
Abran sus libros. (Formal Plural/Uds command) Abra su libro. (Formal Singular/Ud command) Abre tu libro. (Informal Singular/tú command)
"Ud" is the abbreviation for "usted," which is the formal way to say "you" in Spanish. "Tu" is the informal way to say "you." The main difference is that "tu" is used with friends, family, and people the same age or younger, while "ud" is used with acquaintances, strangers, or in formal situations.
Ser means To Be Present Tense: (Yo) - Soy: (I) am (Tú) - Eres: (You) are (él, Ella, Ud.) - Es: (He) is, (She) is, (It) is (Ellos, Ellas, Uds.) - Son: (They) are (Nosotros) - Somos: (We) are (Vosotros) - Sois Preterit Tense: (Yo) - Fui (Tú) - Fuiste (él, Ella, Ud.) - Fue (Ellos, Ellas, Uds.) - Fueron (Nosotros) - Fuimos (Vosotros) - Fuisteis Future Tense: (Yo) - Seré (Tú) - Serás (él, Ella, Ud.) - Será (Ellos, Ellas, Uds.) - Serán (Nosotros) - Serémos (Vosotros) - Seréis
Present indicative: (yo) conozco (tú) conoces (él/ella/Ud) conoce (nosotros) conocemos (ellos/ellas/Uds) conocen Present subjunctive: (yo) conozca (tú) conozcas (él/ella/Ud. conozca (nosotros) conozcamos (ellos/ellas/Uds) conozcan
If you mean "can" as in "Can I have that drink?", the Spanish translation is "poder". To conjugate this, use the following guidelines:Yo puedo...Tu puedes...El puede...Ella puede...Ud. puede...Nosotros pedemos...Ellos pueden...Ellas pueden...Uds. pueden...If you mean "can" as in the object, the translation is "bam".
No...unless you eat yourself. If you do, then it would be... Me Como (Yo) Nos Comemos (Nosotros) Te Comes (Tu) Os Comeis (w/accent on the i) (Vosotros) Se Come (El/Ella/Ud.) Se Comen (Ellos/Ellas/Uds.)