All quotes in this question are from Mario Varga Llosa, from his book The Truth of Lies.
The extract “A community without a written literature expresses itself with less precision, with less richness of nuance, and with less clarity than a community whose principal instrument of communication, the word, has been cultivated and perfected by means of literary texts. … A person who does not read, or reads little, or reads only trash, is a person with an impediment: he can speak much but he will say little, because his vocabulary is deficient in the means for self-expression.” contains verbs in the following tenses (irrespective of the sequence)
simple present, present perfect passive, simple future.
simple present, present perfect, future perfect.
simple past, present perfect passive, future continuous.
past perfect, present perfect, simple future.