Goin is not a word.
No, the pronoun I is always capitalized; the first word of a sentence is always capitalized. If you must use the incomplete word goin, it must be followed by an apostrophe to indicate the missing letter, goin'.The correct sentence is:I am going to pass the first grade.
The word imaginable is an adjective.
we'z goin chicken huntin.
Peter Goin was born in 1951.
Goin' to Memphis was created in 1968.
Goin' West was created in 1969.
Goin' On was created on 1980-03-11.
Goin' Up was created in 1961.
Goin' Blind was created in 1974.
Goin' Coconuts was created in 1978.
Goin' Back was created in 2009.
Goin' To Rockingham was created in 2002.