がた => Plural form(polite) N5
Amount
た[方「ほう」]がいい => It would be better to A N4
Can, Should, Must
がたい => Hard to do A (almost impossible to A) N2
Adjectival, Descriptions
てしょうがない/てしかたがない => Very A; Really A; Extremely A N2
Degree, Level, Amount
たが[最後「さいご」] => Once A occurs, B happens N1
Information, Report
かたがた => Using A as an opportunity/chance/way to B N1
Information, Report
したがって => Because of A, B N2
Reason, Result, Response
[恐「おそ」]れがある => There is a chance of A N2
Potential, Possibility
たことがある => Have done A before N4
Situations and Experiences
んがため => For the purpose of doing A N1
Reason, Result, Response
てくれてありがとう => Thank you for doing A N4
Honorifics
それが => Although (you'd expect) A, (actually) B, Even though A was planned, B N2
Contrast,Surprise