Seven pairs of anything.

(Also called: Small Seven Pairs)

Seven pairs in one suit (Winds or Dragons allowed).

Seven pairs of Terminals, Winds, and/or Dragons only.

Seven pairs of Terminals only (Kong is counted as two pairs if fully concealed in the hand).

(Also called: Earthly Twins)

A pair of each Wind and each Dragon.

Pairs of Green Bams and Green Dragons (Kong is counted as two pairs if fully concealed in the hand).

Pairs of Red Bams and Red Dragons (Kongs are counted as two pairs if fully concealed in the hand).

Pairs of Green Dragons, Red Dragons, Green Bams, and Red Bams.

1-7 in any two suits. This can also be thought of a 7 sequential "knitted" pairs in any two suits. "Knitting" refers to the matching of identical numbers across multiple suits.

Gertie's Garter seen as sequential knitted pairs.

Any seven "knitted" pairs in any two suits. No Winds or Dragons. Shown here as it might look in the hand.

Five pairs in any one suit, plus one of each Dragon, plus any one Dragon (making for one Dragon pair).