Title: "What form should I take after can?" ——In-depth Analysis of the Doubts of the Century for English Whites".
Content: In the course of learning English,"can"As a modal verb, the subsequent verb form has always been a major problem for many beginners in English. The purpose of this article is to help English novices understand and master the correct rules for the use of verbs after "can" through simple explanations.
To be clear, "can" is mainly used to express ability, permission, or possibility, and its basic usage is to be directly followed by the verb form. For example: "I can swim."(I can swim.) Here, "swim" is the form of the verb that appears after "can".
However, in some specific contexts, "can" may be followed by different forms of the verb. When "can" is used in interrogative and negative sentences, the following verbs remain unchanged. For example: "Can you dance?".(Can you dance?) and "cannot" or "can."'t" simplified negative sentence: "i can."'t sing.(I can't sing.) ）
When "can" is used in conjunction with other auxiliary verbs such as "h**e", "be", etc., to form the perfect tense or continuous tense, it is necessary to change the verb form according to the requirements of the corresponding tense. For example, "Can you h**e finished your homework?."(You may have already completed your homework?) "h**e finished" here is in the present perfect tense; Or "can he be sleeping at this hour?".(Could he have been sleeping at this time?) "Be sleeping" here is in the present continuous tense.
If the clause led by "can" is after the main clause, the rule of the subjunctive mood needs to be followed, and the past tense "could" of "can" is followed by the verb form, expressing a more euphemistic or polite request or assumption. For example: "I wonder if you could help me with my english."(I wonder if you can help me learn English.) ）
can" is usually followed by the original verb form, but when constructing interrogative sentences, negative sentences, and combining with other auxiliary verbs to form compound tenses in special contexts, it is necessary to adjust the verb form according to the corresponding grammatical rules. As long as we understand and skillfully use these rules, we can effectively solve the confusion of English novices about which verb form to follow after "can", so as to improve the accuracy and fluency of English expression.