modest
modesty
forgetful
forgetfulness
absent-minded
absent-mindedness
You should ahve a good relationship with people which you work with.
You should ahve a good relationship with people (that / who) you work with.
serious
seriousness
I'm agree with you.
I'm agree with you.
It not happen very often.
It does not happen very often.
mean
meanness
vulnerable
vulnerability
In the past parents have more time to talk with the children.
In the past parents had more time to talk with the children.
disobedient
disobedience
garrulous
garroulousness
sensitive
sensitivity
If I haven't got a sister I would be unhappy.
If I didn't have a sister I would be unhappy.
amiable
amiability
Something that you must to do is getting up early.
Something that you must do is getting up early.
thoughtful
thoughtfulness
jealous
jealousy
You should talk people what to do.
You should tell people what to do.
dependable
dependability
hostile
hostility
obstinate
obstinacy
trustworthy
trustworthiness
vain
vanity
timid
timidity
considerate
consideration
attentive
attentiveness
reliable
reliability