Past Simple/Past Continuous/Past Perfect

lost

didn't lost

had lost

were losing

had had

had

were having

was having

had done / went

did /went

was doing /was going

did / had gone

watched / played

were watching /was playing

had watched /played

was watching / was playing

bought / read

had bought / didn't read

bought / didn't read

didn't buy / hadn't read

meet / discussed /watched

met / was discussing / had watched

met / were discussed / had watched

met / were discussing / had watched

cooked/ came

had cook /came

was cooking / had come

had cooked/ came

was holding / bought

was holding / had bought

held / bought

held / was buying

cost,mean,belong,prefer

be,smell,find,shine

have,taste,feed,rise

think,feel,try,hold

worked

were working

had worked

was working

did....do

were....doing

had ... done

had....did