To say that someone seems about to verb in Japanese, use the following construction:
Verb(base II) So^ desu
This one is an easily constructed grammar principle. First we take any verb we like and put it into base II.
Hanasu - to speak -Hanasu(base II) = hanashi
Ochiru - to fall -Ochiru(base II) = ochi
Naku - to cryNaku(base II) = naki
add So^ desu to the base II of Japanese verbs will make the verb take on the nuance of things which are about to take place or that look like they are going to do it soon, ie. seems about to verb.
hanashi so^ desuhanashiso^ desu - It seems he is about to speak
ochi so^ desuochiso^ desu - looks like they are about to fall downFor iru and eru ending verbs simply drop off the last syllable ru and and your So^ desu. For all other forms put into i ending.