had strong form BrE AmE hæd , weak forms həd, əd, d —The contracted weak form d is used mainly after a vowel (and is often written 'd ); at the beginning of a sentence the usual weak form is həd , or in rapid speech d .
HAD
Meaning of HAD in English
Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012