I've been trying to find out how to say 'I love
you' in the Irish language, and have found the
following. Could you tell me exactly what the
difference in meaning & usage is among them? Your
help is greatly appreciated- thanks so much :-)
Hope I'm not bothering you.

These 7 are what I've found online:

Taim i' ngra leat
T'a gr'a agam dhuit
Tá mé go maith duit
Ta gra agam ort
Moo graugh hoo
Tá mo chroí istigh ionat
Is grá liom

TAIM I NGRA LEAT=I'M IN LOVE WITH YOU
T'Á GRÁ AGAM DHUIT=I HAVE LOVE FOR YOU(ASPIRATION IN DUIT?I'M NOT SURE)
IS GRA LIOM=I LOVE-
TO SAY I LOVE YOU USING THS PHRASE SAY IS GRÁ LIOM THÚ
TÁ GRÁ AGAM ORT-I HAVE LOVE FOR YOU (SILIM!!)
TÁ MO CHROÍ ISTIGH IONAT=MY HEART IS IN YOU
MO GRÁ THÚ(MOO GRAUGH HOO)=YOU ARE MY LOVE
I.M NOT SURE ABOUT TÁ MÉ GO MAITH DUIT BUT I AM CURIOUS ABOUT IT.
I'VE ONLY HEARD IT A FEW TIMES!!
HOPE THIS HELPS YOU IN YOUR CONQUSET TO WOO DO STÓR!!!!!!