Structure:The present perfect tense is formed with have/has + done, as in, “They have decided what to do。" 相关知识点: 试题来源: 解析 正确 现在完成时的基本结构是"have/has + 过去分词"。给出的例句"They have decided"中,have(现在式助动词)与decided(decide的过去分词)完全符合该结构。句子...
subject + auxiliary verb (has/have) + past participle + object 现在完成时的基本结构需要满足以下条件: 1. **主语(subject)**:动作的执行者。 2. **助动词(has/have)**:根据主语的人称和数选择单数(has)或复数(have)。 3. **过去分词(past participle)**:规则动词加"-ed",不规则动词需单独记忆(...
Present Perfect Tense 1.Thepresent perfect tenseused to talk about things thathappened before the time you are speaking or writingbut arerelevant to the present situation, or things that began in the past and are still happening. 2.Structure: Thepresent perfect tenseis formed withhave/has + do...
中国英语老师 The definition of the Present Perfect Tense in English is: it is a verb tense used to describe actions or states that started in the past and have a connection to the present. This means that although the action occurred in the past, its result, effect, or state continues in...
It is formed using the auxiliary verb "have" (in the present tense) followed by the past participle of the main verb. The basic structure of present perfect is: Subject + have/has + past participle Here are some examples of present perfect sentences: 1. I have finished my homework. 2....
The structure is similar to using the present perfect tense in the passive voice, except that the main verb uses the present participle instead of the past participle. The formula for present perfect continuous tense is: [have/has] + [been] + [present participle] She has been seeing a ...
1、Present Perfect Tense1. The present perfect tense used to talk about things that happened before the time you are speaking or writing but are relevant to the present situation, or things that began in the past and are still happening.2. Structure:Thepresent perfect tenseis formed withhave...
The Present Perfect Tense is formed using the following structure: Affirmative: Subject + Have / Has + Past Participle. Negative: Subject + Haven't / Hasn't + Past Participle. Question: Have / Has + Subject + Past Participle. Unspecified point in the past. ...
The Present Perfect Tense 现在完成时态 • The thief has destroyed the fence . • The thief has broken the window. • The thief has stolen money. • The thief has eaten up the chocolate. • He has left his hat on the table. • The thief has drunk up the orange juice. In...
To form questions in the present perfect tense, use the structure: **Have/Has + Subject + Past Participle (+ additional information)?** 构成现在完成时的疑问句需遵循以下步骤: 1. **确定助动词**:根据主语的人称和数选择助动词 **have**(I/you/we/they)或 **has**(he/she/it)。 2. **...