写出下列动词的第三人称单数，现在分词，过去式，过去分词

eats eating ate eaten
collects collecting collected collected
guides guiding guided guided
flies flying flied flied
lies lying lied lied/ lay lain
forgets forgetting forgot forgotten
drops dropping dropped dropped
chooses choosing chose chosen
sees seeing saw seen
hears hearing heard heard
pays paying paied paied
enjoys enjoying enjoyed enjoyed
welcomes welcoming welcomed welcomed
understands undertanding understood understood
feels feeling felt felt

1.eats eating ate ate
2.collects collecting collected collected
3.guides guiding guided guided
4.flies flying flew flown
5.lies lying lay laid
6.forgets forgetting forgot forgot or forgotten
7.drops dropping dropped dropped
8.chooses choosing chose chosen
9.sees seeing saw seen
10.hears hearing heard heard
11.pays paid paid
12.enjoys enjoying enjoyed enjoyed
13.welcomes welcomed welcomed
14.under