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 couldn't surmise you couldn't surmise he couldn't surmise we couldn't surmise you couldn't surmise they couldn't surmise	I couldn't be surmising you couldn't be surmising he couldn't be surmising we couldn't be surmising you couldn't be surmising they couldn't be surmising
Perfect	V-ing perfect
I couldn't have surmised you couldn't have surmised he couldn't have surmised we couldn't have surmised you couldn't have surmised they couldn't have surmised	I couldn't have been surmising you couldn't have been surmising he couldn't have been surmising we couldn't have been surmising you couldn't have been surmising they couldn't 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
couldn't I surmise? couldn't you surmise? couldn't he surmise? couldn't we surmise? couldn't you surmise? couldn't they surmise?	couldn't I be surmising? couldn't you be surmising? couldn't he be surmising? couldn't we be surmising? couldn't you be surmising? couldn't they be surmising?
Perfect	V-ing perfect
couldn't I have surmised? couldn't you have surmised? couldn't he have surmised? couldn't we have surmised? couldn't you have surmised? couldn't they have surmised?	couldn't I have been surmising? couldn't you have been surmising? couldn't he have been surmising? couldn't we have been surmising? couldn't you have been surmising? couldn't they have been surmising?