Remove all "to " from selected area

Hello,

i have to remove "to " from a list of word which is very large. I hope some one here can help me here.

Its a dictionary and some of the verbs in the meaning field have "to " with them and some dont. Now i want to delet all "to "s from the list so that all the verbs are unitedly with out "to ". The seperator is ";".An example:

to throw;to cause to fall;to knock over
to fall down;purler;fall;downfall
to go to;me to go
go there;to go to;go
mento green
to go to hell

should become:

throw;cause to fall;knock over
fall down;purler;fall;downfall
go to;me to go
go there;go to;go
mento green
go to hell

Not every "to " is to be deleted but only those which are at the beginning of a word. For example "to go to hell" will become "go to hell". And "mento green" will remain the way it is.

Thanks for each help in advance