English verb conjugation
COULD INFER

Regular verb: infer - inferred - inferred

Affirmation

Simple form	V-ing form
I could infer you could infer he could infer we could infer you could infer they could infer	I could be inferring you could be inferring he could be inferring we could be inferring you could be inferring they could be inferring
Perfect	V-ing perfect
I could have inferred you could have inferred he could have inferred we could have inferred you could have inferred they could have inferred	I could have been inferring you could have been inferring he could have been inferring we could have been inferring you could have been inferring they could have been inferring

Negation

Simple form	V-ing form
I couldn't infer you couldn't infer he couldn't infer we couldn't infer you couldn't infer they couldn't infer	I couldn't be inferring you couldn't be inferring he couldn't be inferring we couldn't be inferring you couldn't be inferring they couldn't be inferring
Perfect	V-ing perfect
I couldn't have inferred you couldn't have inferred he couldn't have inferred we couldn't have inferred you couldn't have inferred they couldn't have inferred	I couldn't have been inferring you couldn't have been inferring he couldn't have been inferring we couldn't have been inferring you couldn't have been inferring they couldn't have been inferring

Interrogative form

Simple form	V-ing form
could I infer? could you infer? could he infer? could we infer? could you infer? could they infer?	could I be inferring? could you be inferring? could he be inferring? could we be inferring? could you be inferring? could they be inferring?
Perfect	V-ing perfect
could I have inferred? could you have inferred? could he have inferred? could we have inferred? could you have inferred? could they have inferred?	could I have been inferring? could you have been inferring? could he have been inferring? could we have been inferring? could you have been inferring? could they have been inferring?

Interro-negative form

Simple form	V-ing form
couldn't I infer? couldn't you infer? couldn't he infer? couldn't we infer? couldn't you infer? couldn't they infer?	couldn't I be inferring? couldn't you be inferring? couldn't he be inferring? couldn't we be inferring? couldn't you be inferring? couldn't they be inferring?
Perfect	V-ing perfect
couldn't I have inferred? couldn't you have inferred? couldn't he have inferred? couldn't we have inferred? couldn't you have inferred? couldn't they have inferred?	couldn't I have been inferring? couldn't you have been inferring? couldn't he have been inferring? couldn't we have been inferring? couldn't you have been inferring? couldn't they have been inferring?