英和和英

not seldom

not seldom

not infrequently

not infrequently

not frequent

failure-prone

very seldomly

almost not

There is little hope―little, if any, hope―scarcely any hope.

There is little doubt about it.

to repeat one's failure

very few

to fail {in doing something}

be unsuccessful

to fail

don't want to fail

Nothing special.

in proper quantities

not uncommonly

not even once

the degree of restlessness

not regularly

to avoid excess or deficiency―avoid extremes―be moderate

There is little―little, if any―scarcely any―hardly any―next to none.

the level to which one is unaccustomed to something

little damage

unusually short

Can't really be used

to an insufficient degree

Can do it without fail