Write the -ed forms of these verbs.
walk-walked listen
visit __________ open ________
paint _________ clean ________
play __________ cook ________
watch ________ enjoy ________
finish _________ collest _______ 
show _________ help _________
live __________ invite ________ 
phone ________ like __________ 
b)Put the above -ed forms into three columns.
{d} {t} {id} 
{ ___________ } { ___________ } { ___________ }
{ ___________ } { ___________ } { ___________ }
{ ___________ } { ___________ } { ___________ }
{ ___________ } { ___________ } { ___________ }
{ ___________ } { ___________ }
{ ___________ } { ___________ }
{ ___________ }
{ ___________ }

Visited,opened,painted,cleaned,played,cooked,enjoyed,finished,collected,showed,helped,lived,invited,phoned,liked.