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 cannot infer you cannot infer she cannot infer we cannot infer you cannot infer they cannot infer
V-ing form
I cannot be inferring you cannot be inferring she cannot be inferring we cannot be inferring you cannot be inferring they cannot be inferring
Perfect
I cannot have inferred you cannot have inferred she cannot have inferred we cannot have inferred you cannot have inferred they cannot have inferred
V-ing perfect
I cannot have been inferring you cannot have been inferring she cannot have been inferring we cannot have been inferring you cannot have been inferring they cannot 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 I not infer? can you not infer? can she not infer? can we not infer? can you not infer? can they not infer?
V-ing form
can I not be inferring? can you not be inferring? can she not be inferring? can we not be inferring? can you not be inferring? can they not be inferring?
Perfect
can I not have inferred? can you not have inferred? can she not have inferred? can we not have inferred? can you not have inferred? can they not have inferred?
V-ing perfect
can I not have been inferring? can you not have been inferring? can she not have been inferring? can we not have been inferring? can you not have been inferring? can they not have been inferring?