step-great-great-grandson

1- Step-great-grandchild's son.
2- Great-grandchild's stepson.

My step-great-great-grandson is a good person.

step-great-great-grandparent

1- Step-great-grandparent's parent.
2- Great-grandparent's stepparent.

My step-great-great-grandparent is a good person.

step-first-cousin

1- Pibling's stepchild.
2- Steppibling's child.
3- Stepcousin.

My step-first-cousin is a good person.

step-great-great-granddaughter

1- Step-great-grandchild's daughter.
2- Great-grandchild's stepdaughter.

My step-great-great-granddaughter is a good person.

step-great-granduncle

1- Step-great-grandparent's brother.
2- Great-grandparent's stepbrother.

My step-great-granduncle is a good person.

second-cousin-once-removed-in-law

1- Second-cousin-once-removed's spouse.
2- Spouse's second-cousin-once-removed.
3- 2C1R-in-law.

My second-cousin-once-removed-in-law is a good person.

first-cousin-twice-removed-in-law

1- First-cousin-twice-removed's spouse.
2- Spouse's first-cousin-twice-removed.
3- 1C2R-in-law.

My first-cousin-twice-removed-in-law is a good person.