Yes,a river is a thing. All things is a thing
wet
DEEP describes the river, and is an adjective. THE is an article, RIVER is a noun, and the subject, and WAS is a verb.
The verb is "have rafted" and the adverb is "ever."
Transitive
When a collective noun is the subject of a sentence or a clause, a singular collective noun takes a verb for the singular; a plural collective noun takes a verb for the plural.Examples:A herd of elephants was at the river's edge. (singular)Herds of elephants were converging at the river's edge. (plural)
When down by the river, you see a coyote.
The term river bank is an open compound noun, made from the noun river and the noun bank, put together to form a word with its own meaning.
Your question is unclear - please rephrase.
Vary is a verb - it means to change, as in "The depth of the river will vary depending on the season."
No. River is a noun. Here's something that might help you: http://www.buzzin.net/english/nouns.htm Try ringing, rung, rang
The word lifted is a verb. It is the past tense form of the verb "lift".
Yes, the word 'border' is both a noun and a verb.Examples:The border of the tablecloth was embroidered with roses. (noun)Several farms that border the river were flooded. (verb)