Conjugation of 'haber'

Question

The verb 'haber' in 3rd person singular is 'HA' and also "HAY'. I don't really understand the difference.

If you go to the Q&A, right under the green box "ask a question' there is a search box. Type in 'haber' and it will give you numerous posts in the past about haber. - katydew, Mar 3, 2012

Answer 1

I looked for the originator of this worksheet which was posted on the forum awhile back. But it has been very helpful to me. Sorry to whoever originally posted it.

Formas del verbo IMPERSONAL: haber (there to be)

[Irregular en el presente de indicativo (hay), el presente de subjuntivo (haya), el pretérito (hubo, radical fuerte) y el futuro/condicional (habrá/habría).] Indicativo English yo tú [IMPERSONAL] nosotros, -as vosotros, -as Uds./ellos/ellas Presente there is, are hay
Futuro there will be habrá
Imperfecto there was, were, used to be había
Pretérito there was, were hubo
Condicional there would be habría
Presente perfecto there has been, have been ha habido
Futuro perfecto there will have been habrá habido
Pluscuamperfecto there had been había habido
Pretérito anterior1 there had been hubo habido
Condicional perfecto there would have been habría habido
Subjuntivo Presente there is, are, be; let there be, may there be haya
Imperfecto2 there was, were hubiera
Futuro1 there will be hubiere
Presente perfecto there have been, were haya habido
Futuro perfecto1 there will have been hubiere habido
Pluscuamperfecto3 there had been hubiera habido
Imperativo Afirmativo Negativo Tú
Vosotros, -as
Usted
Ustedes
IMPERSONAL let there be, may there be haya no haya Otras formas Gerundio there being habiendo Participio pasado (there) been habido

Answer 2

I would like to have a native speaker explain this one too. To me it is a verb expression that does not fit into any conjugation. Italian has a similar verb "ecco" which means "here is" or "here are". Like: Ecco il mio passaporto. Ecco can not be found in any conjugation either.