non sapeva come

didn't know how to

→ non
phrase Rare #21,722
didn't know how to Used before an infinitive to say that someone did not know how to do something. “Sapeva” is the imperfect form of sapere, meaning “knew.”
IT: Non sapeva come spiegare la situazione.
EN: He didn't know how to explain the situation.

Però non sapeva come avvicinarsi.

But he didn't know how to approach.

— Durante la tormenta (2018)

Non sapeva come aiutarlo.

He didn't know how to help him.

Tom non sapeva come rispondere a Mary.

Tom didn't know how to respond to Mary.

Non sapeva come poteva aiutare.

They didn't know how they could help.

Non sapeva come aiutarla.

He didn't know how to help her.

Non sapeva come ringraziarlo.

She didn’t know how to thank him.

Lui non sapeva come esprimersi.

He didn’t know how to express himself.

Tom non sapeva come farlo.

Tom didn't know how to do it.

Non sapeva come esprimersi.

He/She didn't know how to express himself/herself.

Voleva uscire con lei ma non sapeva come chiederglielo.

He wanted to go out with her but didn't know how to ask her.

Tom non sapeva come rispondere alla domanda di Mary.

Tom didn't know how to answer Mary's question.

Non sapeva come ringraziarla.

He didn't know how to thank her.

Tom non sapeva come chiedere la domanda giusta.

Tom didn't know how to ask the right question.