English pronunciation - "have"?

Honestly I think it depends who you are, and where you live... regions that is. I think some brits say "haff" ... the chavs, maybe hehehhe

I personally think I say it with the v.. lol.. my lips "vibrate" when I say it

The word you're looking for is "voiced". And the answer is, "it depends on what comes after". I think most Americans use the [f] sound when it is followed by "to". I certainly do that. Otherwise as I'm thinking about it, it seems to me it's always the [v] sound.

I have to go now [haff].
I have two dollars in my pocket [have].

Now that I think about it, that difference is kind of weird. The "to" sound is the same but "have" definitely changes. Never thought about it before.

Edit: Why in the world would you give thumbs down to people describing their own accent? Does somebody think they don't know their own accent?

I lived in Australia for five years and know what you mean. When the 'v' of have is followed by an unvoiced consonant, such as 't', then there is a tendency to pronounce the 'v' as 'f': I have to is pronounced /ai haf tə/. The same shift occurs before other unvoiced plosives and sibilants, like [p] [k] and [s].

Well spotted! Often native speakers are not aware of what are called allophones of the same phoneme, which is what you are describing.

It's always a "v" in this word.
Es siempre un sonido "v".
C'est toujours le son "v".

V.

It can vary, but I use a 'V'.

Yes Greta, whatever you say! However, the people who lived in Palestine before 1948 are called Palestinians, after the name given to the land by whoever it maybe, and they are the natives of Palestine and the original owners of the land. Israel, therefore, is an illegal state because it is established by illegal East European immigrants on stolen land from those natives, who are actually a mixed breed of Canaanites/ Philistines/ Greeks/ Roman/ Persians/ Hebrews and Arabs, all of whom were actually invaders, weren't they?

In all English speaking countries HAVE \ˈhav/ /həv/ V

because if you say /həf/ it will mean half

However, in “have to” meaning “must” usually /həf to/ but not necessarily.

*See Randy's examples.