There is no verb form for safe.
The adjective safe is based on the verb "save" and the adverb form would be 'safely'.
Save
"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".
safeno verb form - safety is a noun or adjectiveto be safe
The noun form of "safe" is "safety," while the verb form is "save." For "sound," the noun form is "sound" itself, and it can also be used as a verb in contexts like "to sound" something out or "to sound" an alarm.
Safe is not a verb. It is an adjective. This is because it describes nouns. For example, "This is a safe place" - 'safe' describes the noun 'place'. A verb is a word that describes action for the most part. So examples of some verbs are run, jump, fighting, skiing, being, talked, screamed. These are just parts of speech that might be worthwhile to review briefly.
Verb 3====D - - -
Well it depends on what what the word safe is doing in the sentence.
I am not sure but i think the verb is "waterproofed" - but that means your sentence lack the -ed in waterproof. If not then I don't think there is verb
Verb
It RAINS all right, for the whole weekend, so the fish were safe for another week.
Pilfered is a verb. It shows what the subject (thief) does.