I'm trying to get a feel for verbs that conjugate similarly. Let me see if I get the feel for verbs ending in "-guir".....
* "gu" changes to just "g" in the first person singular form of the present indicative (sigo, consigo, distingo, irgo, extingo, etc.)
* some of the verbs with an "e" in the stem change to an "i" for 1st sing, 2nd sing, and 3rd sing & plural (sigo/sigues/etc., irgo/irgues, etc., and so on....)
I found some verbs (see below) that end in "-guir", but are there others?
distinguir
extinguir
erguir (e:i)
perseguir (e:i)
seguir (e:i)
conseguir (e:i)
proseguir (e:i)
subseguir (e:i)