Simple past grammar

Present Simple-Past simple                                         

Present Continuous-Past Continuous

Past Simple-Past Perfect Simple

Past Continuous- Past Perfect Continuous

Present Perfecte Simple- =

Present Perfect Continuous- Past Perfect Continuous

Past Perfect Simple-=

Past Perfect Continuous-=

Future Simple-would

Can-could    May-might  Must/have to-must had to

now-then    today-that day  tonight-that night

yesterday-The previous day   last week-the previous week

a month ago- the previous month      tomorrow-the next day

next week- the week after    here-there  this-that  these-those

CONDICIONAL

1Condicional: If/Unless+ Present simple, sujeto present simple

2condicional: If/Unless + Past simple, sujeto would/could/might

                                                                        base form

3 Condicional: If+Past Perfect Simple, sujeto would/could/might

                                                             have+v participle