Sequence of tenses

If I knew him earlier.

if I had known him earlier

if I have known him earlier.If Ihave I known him earlier

whether did I know him earlier?

that he doesn't want to insult her.

that he didn't want to insult her

that he hadn't wanted to insult her.

he wants to insult her

Whether he would call her from Cardiff

If he will call her from Cardiff.

If her husband called from Cardiff.

Would you call her from Cardiff?

If they come with him?

to come with him

Would they come with him?

If they cay come with him

Are working in the field during summer

were working in the field during last summer

were working in the field during previous summer

had been working in the field during previous summer.

her class returned from Lviv yesterday

her class had returned from Lviv the day before.

our class has returned from Lviv the day before.

was not right

she isn't right

she has not been right

she wasn't being right

that she is sleeping in the bedroom at the moment.

she was sleeping in the bedroom at that time

she was sleeping in the bedroom now

my daughter was sleeping in the bedroom then

don't touch my stuff, please!

didn't touch his stuff, please!

not to touch his stuff.

not to touch him

whether someone achieved something more incredible.

Whether someone had achieved something more incredible.

Did someone achieve something more incredible?

Has someone achieved something more incredible?