题目内容：

buy,send,lend,be,go,fly,sit,teach,read,understand,think,make,get
spend,write,ring,come,have,pay,sell,bring,leave,sweep,see,take,这些词的过去式和过去分词,最快给出答案并且全对的.

优质解答

buy,bought,bought
lend,lent,lent
be,was（were）,been
go,went,gone
fly,flew,flown
sit,sat,sat
teach,taught,taught
read,read,read
understand,understood,understand
think,thought,thought
make,made,made
get,got,gotten
spend,spent,spent
write,wrote,written
ring,rang,rung
come,came,come
have,had,had
pay,paid,paid
sell,sold,sold,
bring,brought,brought
leave,left,left
sweep,swept,swept
see,saw,seen
take,took,taken

追问：

还有send啊

追答：

send，sent，sent