Dear David, Adam, Jennifer and Suzan,<br><br>Thank you so much for your replies, you have got straight to the point even if I was not too specific on the requirements.<br><br>Below are the links which you have provided in case someone else is interested:
<br><br><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://ota.ahds.ac.uk/" target="_blank">- http://ota.ahds.ac.uk/</a> (The Oxford Text Archive<a name="116817d864b8e3b6_116817a99a7258cb_top"></a>)<br>
<a href="http://www.sketchengine.co.uk/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">
-</a><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;"><a href="http://www.sketchengine.co.uk/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">

 http://www.sketchengine.co.uk</a> (generation of frequency lists from English corpora)<br></span></font>- <a href="http://www.comp.lancs.ac.uk/ucrel/bncfreq/lists/5_2_all_rank_verb.txt" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">

http://www.comp.lancs.ac.uk/ucrel/bncfreq/lists/5_2_all_rank_verb.txt</a> (frequency list of verbs by lemma, from Leech, Rayson & Wilson 2001)<br>
<br>Best,<br>Jesús.<br>