English verb conjugation
COULD FEAR

Regular verb: fear - feared - feared

Affirmation

Simple form	V-ing form
I could fear you could fear she could fear we could fear you could fear they could fear	I could be fearing you could be fearing she could be fearing we could be fearing you could be fearing they could be fearing
Perfect	V-ing perfect
I could have feared you could have feared she could have feared we could have feared you could have feared they could have feared	I could have been fearing you could have been fearing she could have been fearing we could have been fearing you could have been fearing they could have been fearing

Negation

Simple form	V-ing form
I couldn't fear you couldn't fear she couldn't fear we couldn't fear you couldn't fear they couldn't fear	I couldn't be fearing you couldn't be fearing she couldn't be fearing we couldn't be fearing you couldn't be fearing they couldn't be fearing
Perfect	V-ing perfect
I couldn't have feared you couldn't have feared she couldn't have feared we couldn't have feared you couldn't have feared they couldn't have feared	I couldn't have been fearing you couldn't have been fearing she couldn't have been fearing we couldn't have been fearing you couldn't have been fearing they couldn't have been fearing

Interrogative form

Simple form	V-ing form
could I fear? could you fear? could she fear? could we fear? could you fear? could they fear?	could I be fearing? could you be fearing? could she be fearing? could we be fearing? could you be fearing? could they be fearing?
Perfect	V-ing perfect
could I have feared? could you have feared? could she have feared? could we have feared? could you have feared? could they have feared?	could I have been fearing? could you have been fearing? could she have been fearing? could we have been fearing? could you have been fearing? could they have been fearing?

Interro-negative form

Simple form	V-ing form
couldn't I fear? couldn't you fear? couldn't she fear? couldn't we fear? couldn't you fear? couldn't they fear?	couldn't I be fearing? couldn't you be fearing? couldn't she be fearing? couldn't we be fearing? couldn't you be fearing? couldn't they be fearing?
Perfect	V-ing perfect
couldn't I have feared? couldn't you have feared? couldn't she have feared? couldn't we have feared? couldn't you have feared? couldn't they have feared?	couldn't I have been fearing? couldn't you have been fearing? couldn't she have been fearing? couldn't we have been fearing? couldn't you have been fearing? couldn't they have been fearing?