I'd是I would/could/should/had的縮寫，一般I would用得最多。would意思是：愿意、將、將要、會(huì)、打算、大概。would也是will的過(guò)去式。
I'd的全寫I would/could/should/had介紹
1.would：讀作[w?d]，意思是：愿意、將、將要、會(huì)、打算、大概。也是will的過(guò)去式。
如：I would like you to bring a cup of coffee to me.我想讓你幫我?guī)ПХ取?/p>
2.could：讀作[k?d]，can的過(guò)去式，意思是：能夠，打算。用于假設(shè)語(yǔ)氣的條件句，也用于虛擬語(yǔ)氣的結(jié)論句。
如：I could make dinner for you. 我可以給你做晚餐。
3.should：讀作[??d]，意思是：應(yīng)該，將會(huì)，可能，本應(yīng)。也是shall得過(guò)去式。
如：I think I should go.我想我該走了。
4.had：讀作[hæd]，意思是：有（ have的過(guò)去式和過(guò)去分詞 ）;（親屬關(guān)系中）接受，拿，買到。
如：You had better finish your homework first.你最好先做完你得作業(yè)。
