English verb conjugation
COULD SURMISE

Regular verb: surmise - surmised - surmised

Affirmation

Simple form	V-ing form
I could surmise you could surmise he could surmise we could surmise you could surmise they could surmise	I could be surmising you could be surmising he could be surmising we could be surmising you could be surmising they could be surmising
Perfect	V-ing perfect
I could have surmised you could have surmised he could have surmised we could have surmised you could have surmised they could have surmised	I could have been surmising you could have been surmising he could have been surmising we could have been surmising you could have been surmising they could have been surmising

Negation

Simple form	V-ing form
I could not surmise you could not surmise he could not surmise we could not surmise you could not surmise they could not surmise	I could not be surmising you could not be surmising he could not be surmising we could not be surmising you could not be surmising they could not be surmising
Perfect	V-ing perfect
I could not have surmised you could not have surmised he could not have surmised we could not have surmised you could not have surmised they could not have surmised	I could not have been surmising you could not have been surmising he could not have been surmising we could not have been surmising you could not have been surmising they could not have been surmising

Interrogative form

Simple form	V-ing form
could I surmise? could you surmise? could he surmise? could we surmise? could you surmise? could they surmise?	could I be surmising? could you be surmising? could he be surmising? could we be surmising? could you be surmising? could they be surmising?
Perfect	V-ing perfect
could I have surmised? could you have surmised? could he have surmised? could we have surmised? could you have surmised? could they have surmised?	could I have been surmising? could you have been surmising? could he have been surmising? could we have been surmising? could you have been surmising? could they have been surmising?

Interro-negative form

Simple form	V-ing form
could I not surmise? could you not surmise? could he not surmise? could we not surmise? could you not surmise? could they not surmise?	could I not be surmising? could you not be surmising? could he not be surmising? could we not be surmising? could you not be surmising? could they not be surmising?
Perfect	V-ing perfect
could I not have surmised? could you not have surmised? could he not have surmised? could we not have surmised? could you not have surmised? could they not have surmised?	could I not have been surmising? could you not have been surmising? could he not have been surmising? could we not have been surmising? could you not have been surmising? could they not have been surmising?