Page 427 - Basic Japanese

Hahaoya ga sattara, kodomo wa nakimashita.
When the child’s mother left, he cried.

Hahaoya ga satta toki ni, kodomo wa nakimashita.
When the child’s mother left, he cried.

Hahaoya ga saru toki ni, kodomo wa nakimashita.

When the child’s mother was about to leave, he
cried.

Hahaoya ga saru to, kodomo wa nakimashita.
When the child’s mother left, he cried.