fly flies flying flew
take takes taking took
fall falls falling fell
feel feels feeling felt
write writes writing wrote
come comes coming came
make makes making made
seem seems seemed
live lives living lived
play plays playing played
have has having had
keep keeps keeping kept
win wins winning won
see sees seeing saw
think thinks thinking thought
wake wakes waking woke
know knows knowing knew
seem这类的词,一般不用进行时形式,另外,在书后的不规则动词表中,是可以查到他们的过去式和过去分词形式的,至于三单形式和现在分词形式,在每课的生词表中,都有标注,希望你做个细心好学的学生.