动词第三人称单数的构成

1. 动词原形后面直接加-s

look—looks

read—reads

play—plays

stop—stops

2. 在以字母s, x,ch,sh,o结尾的动词后加-es

miss—misses

fix—fixes

watch—watches

wash—washes

go—goes

do—does

3. 辅音字母加y结尾的动词变y为i，再加-es

carry–carries

study–studies

hurry–hurries

cry–cries

4. 特殊变化

have-has

be-is