Here is an easy ukulele strumming pattern to accompany a singer for Big Yellow Taxi by Joni Mitchell.
CHORUS
(E) Don't it always (B) seem to go
That you (A) don't know what you've got
'Til it's (E) gone
They (A) paved paradise
And (B) put up a (E) parking lot
VERSE
(A) They paved paradise
And put up a parking (E) lot
With a (A) pink hotel, a (B) boutique
And a (E) swinging hot spot
The fret positions for the chords for the chorus are 4-4-4-7, 4-3-0-2, 4-3-0-0, 4-3-4-0, 4-3-5-0, 4-3-4-0
CHORUS
(E) Don't it always (B) seem to go
That you (A) don't know what you've got
'Til it's (E) gone
They (A) paved paradise
And (B) put up a (E) parking lot
VERSE
(A) They paved paradise
And put up a parking (E) lot
With a (A) pink hotel, a (B) boutique
And a (E) swinging hot spot
The fret positions for the chords for the chorus are 4-4-4-7, 4-3-0-2, 4-3-0-0, 4-3-4-0, 4-3-5-0, 4-3-4-0