which is preferable/acceptable

[pescamos]

tomisimo, your humour is quite dry!!!! very funny though!
i should have said iop.
as usual, thanks vey much to you all for replying and sosia's insight is very helpful.
in a typical conjuted verb followed by infinitve construction i prefer to attach object pronouns to the end of infinitives, and i notice sosia seems to as well, is there a gramatical reason why you (tomisimo) seem to favour them at the start of the conjugated form???? is it just prefernece?

gracias por ayudarme otra vez,
craig.

[Tomisimo]

Remember that sosia's a native speaker and I'm not, to begin with.

Pronouns (indirect and direct) can preceed the conjugated form or be attached to the infinitive at the end. There are several things that come into play to decide where to put them.

Here are some guidelines:
1. When you have only one conjugated verb the pronoun(s) must go first.
Te lo dí en la mañana.

2. There are some exceptions where a pronoun goes after a conjugated verb (and attached to it)
Véase la página 40.

3. Pronouns are attached to the end of infinitives (where there's only one verb)
Favor de no sentarse en estas sillas

4. When there's more than one verb, (one conjugated and one in infinitive), the pronoun(s) can go before or after.
Lo voy a ver - Voy a verlo.
Te lo voy a comprar - Voy a comprártelo.



But those are the rules that you probably already know.

What I think you're asking is why a speaker would choose one or the other.

I think the pronouns before the conjugated verb is slightly more informal than having them after (and attached to) the infinitive. I think it can also be a personal preference. One or the other may be more normal depending on region/country. Other than that, I'm not sure Perhaps sosia can elaborate since he's a native speaker.