Frasi con dovere, potere, volere, etc. (drill)

dovere

Devo partire. I must leave.
Devo i soldi a Fred. I owe Fred money.
Dovevo partire. I was supposed to leave.
Ho dovuto partire. I had to leave.

potere

Posso partire. I can leave.
Potevo partire. I could leave.
Ho potuto partire. I was able to [succeeded in] leave.
Non ho potuto partire. I failed to leave.

volere

Voglio partire. I want to leave.
Volevo partire. I wanted to leave.
Ho voluto partire. I tried to leave.
No ho voluto partire. I refused to [would not] leave.

conoscere

Conosco Fred. I know Fred.
Conoscevo Fred. I knew Fred.
Ho conosciuto Fred. I met Fred.

sapere

So che Fred è pigro. I know that Fred is lazy.
Sapevo che Fred era pigro. I knew that Fred was lazy.
Ho saputo che Fred era pigro. I found out that Fred was lazy.