Here are a few:
Climbing the mountain was an arduous undertaking, but she managed to do it.
For me, washing the dishes is easy, but I find scrubbing the floor to be a much more arduous task.
It is arduous to exercise when you are in bad shape or out of shape.
No. It is not an adjective. An adjective describes something.
Yes, it is an adjective.
No it's not a adjective, an adjective is a describing word.
Yes, it is an adjective. it is the comparative form of the adjective 'scary.'
The adjective is cloudless. It describes the sky.
Arduous is an adjective.
The word arduous is an adjective. Her journey was long and arduous, but it ultimately strengthened her character and made her a better person.
'The football practices were arduous, but the players knew tough practices were necessary in order to build a successful team.' The word arduous is an adjective.
It's an adjective, it doesn't have a past tense.
That is the correct spelling of "demanding" (insisting, or adjective meaning arduous).
The spelling gruelling is a variant, but the US spelling of the adjective is grueling (demanding, arduous).
Here are some examples: "It was a long and arduous journey." "It was not too arduous a task for a Sunday morning." "The mountain climbers tackled the arduous terrain."
Writing this sentence was rather arduous
I think you mean arduous. Arduous means very hard or difficult.
Running ten miles non stop is very arduous.
difficult
Hauling big logs across the prairie was a very arduous task.