广西博白人
后面直接加动词的原形 
方位副词放句首句子要倒装……这个高中教过吧?no……这个还真不太清楚,对句子意思没影响的只是他们口语方言而已,算了我再去查查。
跟动词原形,也有过去式,例:can__could 还有语气强弱之分
dear **,i am so sorry for not being able to finish my thesis because of my disease, and i hope you could allow me to postpone it for several any
You have to hand in your thesis before F
You must submit your papers before F
情态动词有can (could), may (might), must, have to, shall (should, will (would), dare (dared), need (needed), ought to等。 情态动词无人称和数的变化;不能单独使用,必须与其后的动词原形构成谓语