english_verb #Conjugation_English_verb #v1_v2_v3_v4_v5 #past_tenseThe verb " PAY " is a regular verb, meaning its past tense and past ... ... <看更多>

The past participle can be used to form the present perfect tense. ... the past three hours. His mother ______ (to offer) to pay him to work in her office. ... <看更多>

Positive Sentence If you want to make a positive sentence within Past Perfect Continuous Tense structure, you have to pay attention to something first. Past ... ... <看更多>

In the present perfect construction I have paid it it's purely a "function word" (used to indicate a past tense verb form). This has no ... ... <看更多>