~がほしい => I want ~ N5
Asking and Telling
きらいがある => There is a tendency to do A N1
Potential, Possibility
た[方「ほう」]がいい => It would be better to A N4
Can, Should, Must
より~の[方「ほう」]が~ => B is more C than A N4
Comparisons
がっている => Want, like N4
Secondary Verb
ないと,なくちゃ => Must do A N3
Needs, Requirement
がちです/がちになる => A tends to become/happen/occur N2
Potential, Possibility
ない[方「ほう」]がよい => It would be better to not A N4
Can, Should, Must
がっている => Wants to A N3
Will, Decision, Doing
うが~うが => Whether A or B N1
Miscellaneous
[事「こと」]ができる => Be able to A; can do A, Can A; be possible to A; N4
Causative, Passive, Volitional
たことがある => Have done A before N4
Situations and Experiences