I can infer you can infer she can infer we can infer you can infer they can infer
V-ing form
I can be inferring you can be inferring she can be inferring we can be inferring you can be inferring they can be inferring
Perfect
I can have inferred you can have inferred she can have inferred we can have inferred you can have inferred they can have inferred
V-ing perfect
I can have been inferring you can have been inferring she can have been inferring we can have been inferring you can have been inferring they can have been inferring
Negation
Simple form
I can't infer you can't infer she can't infer we can't infer you can't infer they can't infer
V-ing form
I can't be inferring you can't be inferring she can't be inferring we can't be inferring you can't be inferring they can't be inferring
Perfect
I can't have inferred you can't have inferred she can't have inferred we can't have inferred you can't have inferred they can't have inferred
V-ing perfect
I can't have been inferring you can't have been inferring she can't have been inferring we can't have been inferring you can't have been inferring they can't have been inferring
Interrogative form
Simple form
can I infer? can you infer? can she infer? can we infer? can you infer? can they infer?
V-ing form
can I be inferring? can you be inferring? can she be inferring? can we be inferring? can you be inferring? can they be inferring?
Perfect
can I have inferred? can you have inferred? can she have inferred? can we have inferred? can you have inferred? can they have inferred?
V-ing perfect
can I have been inferring? can you have been inferring? can she have been inferring? can we have been inferring? can you have been inferring? can they have been inferring?
Interro-negative form
Simple form
can't I infer? can't you infer? can't she infer? can't we infer? can't you infer? can't they infer?
V-ing form
can't I be inferring? can't you be inferring? can't she be inferring? can't we be inferring? can't you be inferring? can't they be inferring?
Perfect
can't I have inferred? can't you have inferred? can't she have inferred? can't we have inferred? can't you have inferred? can't they have inferred?
V-ing perfect
can't I have been inferring? can't you have been inferring? can't she have been inferring? can't we have been inferring? can't you have been inferring? can't they have been inferring?