-fall down on one's knees

Ifall down on my knees

youfall down on your knees

hefalls down on his knees

wefall down on our knees

youfall down on your knees

theyfall down on their knees

Ifell down on my knees

youfell down on your knees

hefell down on his knees

wefell down on our knees

youfell down on your knees

theyfell down on their knees

Iwillfall down on my knees

youwillfall down on your knees

hewillfall down on his knees

wewillfall down on our knees

youwillfall down on your knees

theywillfall down on their knees

Ihavefallen down on my knees

youhavefallen down on your knees

hehasfallen down on his knees

wehavefallen down on our knees

youhavefallen down on your knees

theyhavefallen down on their knees

-falling down on one's knees

-fallen down on one's knees