Modals of speculation

It's possible she misunderstood you./ She ... you.

Obviously, they tried to deceive you./ They ..... to deceive you.

Perhaps she sold all the jewellery before the police caught her./ She .... all the jewellery before the police caught her.

I'm sure I locked the door!/ I .... the door.

I'm sure she didn't mean any offence./ She .... any offence.

I'm sure they distributed all the leaflets. / They .... all the leaflets.

I'm sure he didn't realise the consequences of his actions./ He .... the consequences of his actions.

I saw Jim at the hospital last week, maybe he went there to visit a sick relative. /  He .... there to visit a sick relative.

You're flat broke?! It's impossible to spend so much money within a day!/ You're flat broke?! You ..... so much money within a day!

Perhaps he lied to you./ He ... to you.

Perhaps they didn't know what to do./ They ..... what to do.

I'm convinced he did it intentionally./ He ... intentionally.

Where's Sam? Perhaps he decided to leave work early. / Where's Sam? He .... to leave work early.

I'm sure they didn't know the rules of they game./ They ... the rules of the game.