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mustn't is short for 'must not'. '
must is a modal auxiliary verb and is used in connection with strong obligation and freedom to act.
'must not' is a prohibition. It is command, an instruction, a restriction on freedom to act: "Students must not copy other student's homework."
So 'mustn't' is a prohibition, concerning the present and the future.
But 'have (+ past participle)' is speaking about something that has happened in the past. It refers to a finished, completed matter.
e.g. "I have ordered tomato soup."
NOTE: It is impossible to prohibit something from happening which has already happened!
So constructions such as 'must not' + 'have done' do not make any sense!
Rather than use 'mustn't' there are several more suitable modal auxiliary verbs we can use if we want to talk about a finished past event.
- I shouldn't have ordered tomato soup!
- Oh no! I couldn't have ordered soup, because I don't like it and I'm allergic to it!
- I know I wouldn't have ordered tomato soup!
If you want to use 'mustn't' to prohibit something happening, it is used with the 'present simple' verb form.
e.g.
- I mustn't order tomato soup.
- I mustn't order tomato soup next time!
- Students mustn't jump out of the window.
What else can I help you with?
How do you say brillando in English?
The Spanish word "brillando" translates to "shining" in English. It is the present participle form of the verb "brillar," which means "to shine."
What is participle form of bring?
The past participle of bring is brought, and the present participle is bringing.
What is the present participle form of taken?
The present participle is taking.
What is ing form of aware?
The present participle form (or -ing form) of "aware" is "being aware." In English grammar, the present participle is formed by adding -ing to the base form of the verb. In this case, "aware" is an adjective, and when transformed into a verb form, it becomes "being aware."
What is the present participle of am?
"Am" is the present participle.Present participle is the ing form of the verb and for am that is being
What is past participle form of get?
The past participle of the verb to get is gotten.
What is the past participle form of get?
The past participle form of "get" is "got" in British English and "gotten" in American English.
Is running a past participle?
No. "Running" is a present participle. (As far as I know, no past participle in English ends in the letters "ing").
What is the third form of think?
The third form of "think" is "thought." In English, "think" is the base form, "thought" is the simple past and past participle form, and "thinking" is the present participle.
Is -ing a past participle?
No. -ing is used for the present participle.
Is yesterday past simple or past participle?
Yesterday is considered the simple past tense in English, as it refers to a specific time in the past. The past participle form of "yesterday" would be "yesterdayed," which is not a commonly used or recognized term in English grammar.
What is the past participle of prove?
The past participle of 'prove' is 'proved'. The form 'proven' is also found and is acceptable. It is used particularly in Scots law, in the verdict 'not proven'.
What is a past participle of been?
Have been or Has been IS the past participle......it is equivalent to "was".
What is the past participle of form?
Formed is the past participle of form.
What is the plural for stolen?
The word "stolen" is a verb form, or an adjective, and has no plural.
What is the participal tense?
The "participle tense" is not a standard term in grammar. However, a participle is a form of a verb that is used to modify a noun or pronoun, often indicating the present or past participle form in English. It can be used to create various tenses in conjunction with auxiliary verbs.
How do you say brillando in English?
The Spanish word "brillando" translates to "shining" in English. It is the present participle form of the verb "brillar," which means "to shine."
