We use the present perfect to connect the past and the present. The cafe has just opened. (= It is open now.) People have been arriving in large numbers. (= They are still arriving now.) We can often use either the present perfect simple or the present perfect continuous with since or for when something started in the past and continues now, or
We use the present perfect to describe the past when it affects the present, for example talking about past experiences for something that began in the past and is still true describing changes. Examples: I have been to that restaurant twice. Emily has worked in the city for many years. Your hair has grown since last year.Rumus. Present continuous dibentuk dengan auxiliary verb “be”, berupa is/am/are – karena present tense (waktu sekarang), dan present participle (-ing). Is digunakan pada subject berupa singular noun (seperti: Tita, book) dan third person singular pronoun (seperti: she, he, it); are pada plural noun (seperti: boys, men, books), plural
Conjugation of English Simple Present Tense. The conjugation of English verbs in the simple present is relatively simple. We add an -s/-es to verbs in the third person singular (he/she/it), otherwise the verb does not change. In positive sentences, we use the verb in its present form. In negative sentences and questions, we use the auxiliary Using YET in Present Perfect Tense. Yet means that something that we expected has happened or hasn’t happened. We usually put it at the end of a sentence. Michael has bought a new dress but she hasn’t worn it yet. He hasn’t watered the flowers yet. It hasn’t been decided yet. We use the past simple for past events or actions which have no connection to the present. We use the present perfect for actions which started in the past and are still happening now OR for finished actions which have a connection to the present. We CAN'T use the present perfect with a finished time word: NOT: I've been to the museum yesterday .