Try thinking of is like this:

að láta gera skip = to let (someone) make ships = to have ships made
að hafa látið gera skip = to have let (someone) make ships = to have
had ships made

Don't hesitate to ask, if this is not sufficient information for you
to understand the sentence.

Regards
Pelle



Heill Pelle,

You don't do so bad explaining things yourself. :) You have certainly
made things a little clearer for me. The main source of my confusion is
that I was not aware that the pp. had m., f., and n. forms. Now that I
consider it a little more that seems like a natural thing. In the verb
tense lists, it usually only has one form listed so I assumed that pp. had
one form. So you have been very helpful.

Another question stemming from that realization then. I know that it would
probably not be possible to list all the endings used but are there endings
for pp. in m., f., and n. that are more common or that are used more often
than others? New Intro says that the participles are inflected as adjectives
are, saying strong verbs take -in and weak verbs, -ð, -d, -t. I notice that
the strong n. acc. adjective inflexion is -t. If I am understanding
correctly, these are modeled after the adjective inflexions and if so any
particular tense of the adjective, perhaps acc.? I don't know if anyone
else would find this discussion interesting but I certainly would be
interested in seeing it discussed further.

best regards,

-Alfta