Questions about subject pronouns
Q: Why is it yo como ensalada todos los días and NOT yo come ensalada todos los días?
Remember, subject pronouns trigger agreement on the verb. The verb ending must agree with the subject pronoun. All verbs take -o to agree with yo in the present tense. The -e ending is for 3rd person singular.
Q: Why is it él es mi amigo and NOTel es mi amigo?
The 3rd person singular masculine subject pronoun él MUST occur with an accent. Without an accent it is the maculine singular definite article el that occurs before a noun, e.g.: ¿Dónde está el libro?
Q: Why is it tú vienes mañana and NOT tu vienes mañana?
The 2nd person singular subject pronoun tú MUST occur with an accent. Without an accent this word is the 2nd person singular possessive determiner tu that occurs before a noun, e.g.: Me gusta tu camiseta.
Q: Why is it tú vienes mañana and NOT tú viene mañana?
All verbs must agree with the subject. Since the subject in this case is tú, there MUST be an -s on the end of the verb in the present tense.
Q: Why is it Yo voy a viajar a España. Voy a Barcelona. and NOT Yo voy a viajar a España. Yo voy a Barcelona?
Remember that Spanish does not require the use of subject pronouns in every context where one could in principle occur. In fact, it is more native-like to AVOID subject pronouns in contexts where it is already understood who/what the subject is, for example if the subject has already been mentioned in the conversation.
Q: Why is it nosotros entendemos la información and NOT nosotros entienden la información?
All verbs must agree with the subject. Since the subject in this case is nosotros, this -er verb MUST end in -emos in the present tense.
Q: When do I use ustedes saben la verdad versus vosotros sabéis la verdad?
Use the subject pronoun ustedes to refer to ANY (formal or informal) 2nd person plural group when you are outside Spain. Only use subject pronoun vosotros to refer to an informal 2nd person group within Spain, but use ustedes to refer to a formal 2nd person plural group within Spain.
Q: Why is it ellas pueden cantar muy bien and NOT ellas puede cantar muy bien?
All verbs must agree with the subject. Since the subject in this case is ellas, the verb must end in -n in the present tense.
SpanishChecker