I saw the broken vase.
the progressive tense involves action that is, was, or will be in progress at a certain time.
example:i am learning english at my desk. i was learning english the last two years. i will be learning english then.
perfect tense have 3 types:present perfect tense describes an action that started in the past and continues to the present time. use has/have + the past participle form of the verb.past perfect tense describes an action that started and ended in the past. use had + the past participle form of the verb.future perfect tense describes future actions that will occur before some other action. use will have + the past participle form of the verb.
example:i have cooked supper every night this week. i had cooked supper every night until the stove broke. i will have cooked supper every night by the time this diet ends.