Can they move in a new flat. Как будет в прошедшем и будующем временах?

У меня маленький вопрос ... это вопрос, так? (Can they move ...) ?

Если да, то попробую помочь ...

Can they move in a new flat? (наст.)

Will they can move in a new flat? (будущ.)

Did they can move in a new flat? (прошед.)

1. Could they move in a new flat? или Were they able to move in a new flat?

2. Will they be able to move in a new flat?