There is no past tense for child because child is a noun. We only use past tenses for verbs.
"Safe" is not a verb, so it doesn't have a past form. "Safe" can be an adjective or a noun. In case you mean the verb "save"; it is regular, so the past is "saved".
No, the word safe can only be used as a noun and an adjective. Only verbs have tenses.The past tense of save is saved.
"the book safe at home" does not contain any past tense verbs.You could add the word "was": The book was safe at home.Was is a past tense verb of "to be".
The child-safe wood finish used in this product is non-toxic and safe for children.
No. It isn't safe for a child to swallow anything that isn't food.
no,in fact it's dangerous.no snake is safe around a child
No, it is not safe for a child to play with a toy hand grenade.
They have a past of collapsing.
If the child has asthma, it is not safe.
Yes. There is no statute of limitations on past-due child support.
If only a few days past it will be safe. I commonly use up to a week past if it looks good.