what I'd mean? I'd is I dont? I do? I did? i so confused.

Letter "I" always capital?

is or are? is or are?

what is colour mean? is it formal or informal for color?

sentences correct? How you came fluent in English? How you say __ in English? I like the music from your country

what this mean? i watch english drama and girl said you can talk the talk but you can't walk the walk