There is no such adverbial pair "hardly when" -- as an adverb of degree, hardly modifies adjectives, not adverbs. When it modifies verbs, it can also mean heavily.
Examples:
The trail hardly seemed dangerous. The climb was hardly difficult for the soldiers.
The rhino landed hardly on its side and we worried that it may have been injured.
You might use the two words separately in a sentence: We had hardly started when the rain began.
use aver in a sentence
use the word rigorousness in a sentence
you just used it in a sentence... How do you use mathematical in a sentence? is a sentence
"It is easy to use an exponent in a sentence." There, that sentence uses it!
Binary number are hardly ever used in business.
Hardly any of the kids brought money to school with them.
I can hardly hear you over the noise of the traffic outside.
I don't like sports and hardly ever watch them either live or on the telly.
Hardly a sound was coming from the house, so they were sure nobody was in.
she was so emaciated she could hardly stand
The fire hardly thwarted it, however the case was Inconceivable.
Don't assume he's perfect when you hardly even know him.
The rickety old bridge hardly looked stable.
We could hardly see the rock as it fell down the elevator shaft.
It depends how you use the word hardly in a sentence like for example i said i won and the other example is i can't belive i lost when i worked so hard to win it.
Here is how you use xylem in a sentence, "A plant would hardly survive without the xylem tissue. " This is a transportation tissue which is common in vascular plants.
I've hardly begun to explain my story!