{"id":52835,"date":"2023-12-24T15:15:36","date_gmt":"2023-12-24T12:15:36","guid":{"rendered":"https:\/\/www.englishcentral.com\/blog\/?p=52835"},"modified":"2023-12-26T15:16:45","modified_gmt":"2023-12-26T12:16:45","slug":"dong-tu-khuyet-thieu-va-cach-su-dung","status":"publish","type":"post","link":"https:\/\/www.englishcentral.com\/blog\/vi\/dong-tu-khuyet-thieu-va-cach-su-dung\/","title":{"rendered":"\u0110\u1ed9ng T\u1eeb Khuy\u1ebft Thi\u1ebfu V\u00e0 C\u00e1ch S\u1eed D\u1ee5ng"},"content":{"rendered":"
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\u0110\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng
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\u0110\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu (modal verbs) l\u00e0 nh\u1eefng \u0111\u1ed9ng t\u1eeb c\u00f3 ch\u1ee9c n\u0103ng b\u1ed5 ngh\u0129a cho \u0111\u1ed9ng t\u1eeb ch\u00ednh, d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 kh\u1ea3 n\u0103ng, d\u1ef1 \u0111\u1ecbnh, s\u1ef1 c\u1ea5m \u0111o\u00e1n, c\u1ea7n thi\u1ebft,… \u0110\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu ph\u1ed5 bi\u1ebfn bao g\u1ed3m: can, could, may, might, must, have to, need, should, ought to,…<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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C\u00e1c \u0111\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu May, might, can, could, ought to<\/strong><\/h2>\n

a, May v\u00e0 might \u0111\u1ec1u di\u1ec5n t\u1ea3 kh\u1ea3 n\u0103ng x\u1ea3y ra c\u1ee7a m\u1ed9t s\u1ef1 vi\u1ec7c, nh\u01b0ng may th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 kh\u1ea3 n\u0103ng x\u1ea3y ra cao h\u01a1n, trong khi might th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 kh\u1ea3 n\u0103ng x\u1ea3y ra th\u1ea5p h\u01a1n.<\/em>
May<\/strong>
May I go to the bathroom? (T\u00f4i c\u00f3 th\u1ec3 \u0111i v\u1ec7 sinh kh\u00f4ng?)
You may borrow my book. (B\u1ea1n c\u00f3 th\u1ec3 m\u01b0\u1ee3n s\u00e1ch c\u1ee7a t\u00f4i.) <\/p>\n

Might<\/strong>
The weather might be cold tomorrow. (Tr\u1eddi c\u00f3 th\u1ec3 l\u1ea1nh ng\u00e0y mai.)
You might be right. (B\u1ea1n c\u00f3 th\u1ec3 \u0111\u00fang.)<\/p>\n

b, Can v\u00e0 could c\u0169ng \u0111\u1ec1u di\u1ec5n t\u1ea3 kh\u1ea3 n\u0103ng x\u1ea3y ra c\u1ee7a m\u1ed9t s\u1ef1 vi\u1ec7c, nh\u01b0ng can th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 kh\u1ea3 n\u0103ng x\u1ea3y ra \u1edf hi\u1ec7n t\u1ea1i ho\u1eb7c t\u01b0\u01a1ng lai, trong khi could th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 kh\u1ea3 n\u0103ng x\u1ea3y ra trong qu\u00e1 kh\u1ee9 ho\u1eb7c kh\u1ea3 n\u0103ng ai \u0111\u00f3 c\u00f3 th\u1ec3 l\u00e0m g\u00ec n\u1ebfu c\u00f3 \u0111i\u1ec1u ki\u1ec7n.<\/em>
Can<\/strong>
I can speak English. (T\u00f4i c\u00f3 th\u1ec3 n\u00f3i ti\u1ebfng Anh.)
The car can go over 100 miles per hour. (Chi\u1ebfc xe c\u00f3 th\u1ec3 ch\u1ea1y h\u01a1n 100 d\u1eb7m m\u1ed9t gi\u1edd.)<\/p>\n

Could<\/strong>
You could go to the movies tonight if you wanted to. (B\u1ea1n c\u00f3 th\u1ec3 \u0111i xem phim t\u1ed1i nay n\u1ebfu b\u1ea1n mu\u1ed1n.)
The car could go over 100 miles per hour if it was in good condition. (Chi\u1ebfc xe c\u00f3 th\u1ec3 ch\u1ea1y h\u01a1n 100 d\u1eb7m m\u1ed9t gi\u1edd n\u1ebfu n\u00f3 \u1edf trong t\u00ecnh tr\u1ea1ng t\u1ed1t.)<\/p>\n

c, Ought to di\u1ec5n t\u1ea3 l\u1eddi khuy\u00ean, l\u1eddi khuy\u00ean nh\u1ee7, l\u1eddi khuy\u00ean n\u00ean l\u00e0m g\u00ec.<\/em>
Ought to th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong c\u00e1c c\u00e2u kh\u1eb3ng \u0111\u1ecbnh v\u00e0 c\u00e2u ph\u1ee7 \u0111\u1ecbnh.
Ought to<\/strong>
You ought to study hard. (B\u1ea1n n\u00ean h\u1ecdc h\u00e0nh ch\u0103m ch\u1ec9)
You ought not to smoke. (B\u1ea1n kh\u00f4ng n\u00ean h\u00fat thu\u1ed1c.)<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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C\u00e1c \u0111\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu will, would, shall, should<\/p>\n

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a, Will v\u00e0 would \u0111\u1ec1u di\u1ec5n t\u1ea3 d\u1ef1 \u0111\u1ecbnh, l\u1eddi \u0111\u1ec1 ngh\u1ecb, l\u1eddi y\u00eau c\u1ea7u, l\u1eddi h\u1ee9a, l\u1eddi cam k\u1ebft,… nh\u01b0ng will th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 d\u1ef1 \u0111\u1ecbnh, l\u1eddi \u0111\u1ec1 ngh\u1ecb, l\u1eddi y\u00eau c\u1ea7u, l\u1eddi h\u1ee9a, l\u1eddi cam k\u1ebft trong t\u01b0\u01a1ng lai, trong khi would th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 d\u1ef1 \u0111\u1ecbnh, l\u1eddi \u0111\u1ec1 ngh\u1ecb, l\u1eddi y\u00eau c\u1ea7u, l\u1eddi h\u1ee9a, l\u1eddi cam k\u1ebft trong qu\u00e1 kh\u1ee9 ho\u1eb7c trong tr\u01b0\u1eddng h\u1ee3p gi\u1ea3 \u0111\u1ecbnh.<\/em>
\nWill<\/strong>
\nI will go to the movies tonight. (T\u00f4i s\u1ebd \u0111i xem phim t\u1ed1i nay.)
\nWill you help me with this? (B\u1ea1n c\u00f3 gi\u00fap t\u00f4i v\u1edbi vi\u1ec7c n\u00e0y kh\u00f4ng?)
\nI will make sure that everything is ready. (T\u00f4i s\u1ebd \u0111\u1ea3m b\u1ea3o r\u1eb1ng m\u1ecdi th\u1ee9 \u0111\u00e3 s\u1eb5n s\u00e0ng.)<\/p>\n

Would<\/strong>
\nI would like to go to the movies tonight. (T\u00f4i mu\u1ed1n \u0111i xem phim t\u1ed1i nay.)
\nWould you like to go to dinner with me? (B\u1ea1n c\u00f3 mu\u1ed1n \u0111i \u0103n t\u1ed1i v\u1edbi t\u00f4i kh\u00f4ng?)
\nI would have helped you if I had known. (T\u00f4i s\u1ebd gi\u00fap b\u1ea1n n\u1ebfu t\u00f4i bi\u1ebft.)<\/p>\n

b, Shall v\u00e0 should \u0111\u1ec1u di\u1ec5n t\u1ea3 l\u1eddi khuy\u00ean, l\u1eddi khuy\u00ean nh\u1ee7, l\u1eddi khuy\u00ean n\u00ean l\u00e0m g\u00ec, nh\u01b0ng shall th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong v\u0103n vi\u1ebft ho\u1eb7c v\u0103n n\u00f3i trang tr\u1ecdng, trong khi should th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng trong v\u0103n n\u00f3i.<\/em>
\nShall<\/strong>
\nWhat shall we do tonight? (T\u1ed1i nay ch\u00fang ta s\u1ebd l\u00e0m g\u00ec?)
\nI shall be there on time. (T\u00f4i s\u1ebd \u0111\u1ebfn \u0111\u00fang gi\u1edd.)<\/p>\n

Should<\/strong>
\nYou should study hard. (B\u1ea1n n\u00ean h\u1ecdc ch\u0103m.)
\nYou should not smoke. (B\u1ea1n kh\u00f4ng n\u00ean h\u00fat thu\u1ed1c.)<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t

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\u0110\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu must
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\u0110\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu must c\u00f3 ngh\u0129a l\u00e0 “ph\u1ea3i”. \u0110\u1ed9ng t\u1eeb must \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 di\u1ec5n t\u1ea3 s\u1ef1 c\u1ea7n thi\u1ebft, b\u1eaft bu\u1ed9c ph\u1ea3i l\u00e0m g\u00ec. <\/em>
\nYou must study hard if you want to get good grades. (B\u1ea1n ph\u1ea3i h\u1ecdc ch\u0103m n\u1ebfu b\u1ea1n mu\u1ed1n \u0111\u1ea1t \u0111i\u1ec3m cao.)
\nI must go home now. (T\u00f4i ph\u1ea3i v\u1ec1 nh\u00e0 ngay b\u00e2y gi\u1edd.)<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

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C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 ch\u1ee7 \u0111\u1ec1 \u0111\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng<\/strong><\/h2>\n

C\u00e2u 1: C\u1ea7n l\u01b0u \u00fd \u0111i\u1ec1u g\u00ec khi s\u1eed d\u1ee5ng \u0111\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu?<\/em><\/strong>
\n– \u0110\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu kh\u00f4ng chia theo th\u00ec v\u00e0 ng\u00f4i, ch\u1ec9 xu\u1ea5t hi\u1ec7n \u1edf d\u1ea1ng nguy\u00ean th\u1ec3.
\n– \u0110\u1ed9ng t\u1eeb khuy\u1ebft thi\u1ebfu lu\u00f4n \u0111\u1ee9ng tr\u01b0\u1edbc \u0111\u1ed9ng t\u1eeb ch\u00ednh.<\/p>\n

C\u00e2u 2: Ph\u00e2n bi\u1ec7t should v\u00e0 ought to?<\/em><\/strong>
\n– Should v\u00e0 ought to \u0111\u1ec1u c\u00f3 ngh\u0129a l\u00e0 “n\u00ean”, nh\u01b0ng c\u00f3 nh\u1eefng s\u1eafc th\u00e1i kh\u00e1c nhau.
\n– Should \u0111\u01b0\u1ee3c d\u00f9ng ph\u1ed5 bi\u1ebfn h\u01a1n ought to.
\n– Ought to th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 l\u1eddi khuy\u00ean, l\u1eddi khuy\u00ean nh\u1ee7, l\u1eddi khuy\u00ean n\u00ean l\u00e0m g\u00ec, nh\u01b0ng mang t\u00ednh ch\u1ea5t m\u1ea1nh m\u1ebd h\u01a1n should.<\/p>\n

C\u00e2u 3: Ph\u00e2n bi\u1ec7t must v\u00e0 have to?<\/strong><\/em>
\n– Must v\u00e0 have to \u0111\u1ec1u c\u00f3 ngh\u0129a l\u00e0 “ph\u1ea3i”, nh\u01b0ng c\u00f3 nh\u1eefng s\u1eafc th\u00e1i kh\u00e1c nhau.
\n– Must th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 s\u1ef1 c\u1ea7n thi\u1ebft, b\u1eaft bu\u1ed9c ph\u1ea3i l\u00e0m g\u00ec, th\u01b0\u1eddng mang t\u00ednh ch\u1ea5t c\u00e1 nh\u00e2n.
\n– Have to th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 di\u1ec5n t\u1ea3 s\u1ef1 c\u1ea7n thi\u1ebft, b\u1eaft bu\u1ed9c ph\u1ea3i l\u00e0m g\u00ec, th\u01b0\u1eddng mang t\u00ednh ch\u1ea5t kh\u00e1ch quan.<\/p>\n