The plural form for the noun knapsack is knapsacks.
knapsack
He carried the knapsack up the mountain. This is a sample sentence using the word knapsack.
She lugged the knapsack over the hill or The knapsack was filled with snacks for their trip. a knapsack is kinda like a backpack.
Knapsack in Spanish is: mochila.
knapsack means a bookback The boy took out a book from his knapsack I hope this help u =_=
There is no plural form. Do and Do not are verbs
The plural form of him, her, or it is them. (objective pronouns)
Bridges is the plural form of bridge.
Knapsack - band - was created in 1993.
Knapsack - band - ended in 2000.
The plural form of "is" is "are."
The plural form of "was" is "were."