Hi Philip, Yes, it is optional when a transitive verb is directly preceded by the pronouns that CreyB listed above, so you can choose to have the past participle agree if you so desire.
That said, you should enter the sentence verbatim for the listening exercises on Duo to avoid losing a heart piece, as Duo's grading system is quite strict. Hope this helps!
With a direct object pronoun in the third person, the participle MUST change to agree. With any of the other pronouns (mi, ti, ci, vi), the participle CAN be changed, but this is optional. Ex: Vi ho sentiti - I have heard them (males) Vi ho sentite - I have heard them (females) Vi ho sentito - I have heard them (undefined gender - optional)
It is a bit strange, because I never heard Italians using agreement with a pronoun gender when they use "avere". Instead in some grammar books I've met, that agreement with a gender of pronoun should be used when "essere" is used as a condition of the object and also to express a passive form. For example: Vi ho visto Vi siete visti However, I might be wrong...
«sentire» only means "to hear," which is almost like saying "to sense." When you make the verb reflexive «sentirsi», that means "to feel:" «Mi sento triste.» = "I feel sad." However, "to smell" is «sentire l'odore» (lit. "to sense the odor"), although I am sure there are other one-word verbs that mean the same thing.
Yes that is correct. In fact I would say it is the normal way to describe hearing in the past tense. You would normally only say "I have heard you" in particular circumstances such as "I have heard you say that many times in the past" where you are talking about repeated occurrences in the past rather than just one occurrence.
I believe that "I heard you guys" should be an acceptable translation because the phrase "you guys" is used in some parts of the world to idiomatically express the second person plural in English. I do recognize that it is a group of women signified by sentite. However, one still uses you guys no matter the gender of the group. Thus, I believe my translation is acceptable.
It may be deemed incorrect simply because there is no 'all' to be translated in this exercise. Sentire has more than one meaning / translation (http://www.wordreference.com/iten/sentire) therefore it would seem reasonable to suggest that there are three possible acceptable translations that could be applied here - 'I have smelled (smelt) you', 'I have heard you' or 'I have felt you'. Given the fact that there is no additional context specifically suggesting smell, hearing or feel I think that your punt is reasonable (minus the 'all') however DL appears to have been coded to expect 'I have heard you'.
Sentire appears to mean "to feel" or "to hear". Ok then, can i presume that sentito uses "essere" when meant to "feel" (health), and avere when meant to "hear"? Intransitivo verso transitivo? Please help me then, what would the verb be for to physically feel something: for example -- I felt the cat's furr. I felt the bee's sting. Grazie.
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