English verb conjugation
CAN SPECIALIZE

Regular verb: specialize - specialized - specialized

Affirmation

Simple form	V-ing form
I can specialize you can specialize she can specialize we can specialize you can specialize they can specialize	I can be specializing you can be specializing she can be specializing we can be specializing you can be specializing they can be specializing
Perfect	V-ing perfect
I can have specialized you can have specialized she can have specialized we can have specialized you can have specialized they can have specialized	I can have been specializing you can have been specializing she can have been specializing we can have been specializing you can have been specializing they can have been specializing

Negation

Simple form	V-ing form
I cannot specialize you cannot specialize she cannot specialize we cannot specialize you cannot specialize they cannot specialize	I cannot be specializing you cannot be specializing she cannot be specializing we cannot be specializing you cannot be specializing they cannot be specializing
Perfect	V-ing perfect
I cannot have specialized you cannot have specialized she cannot have specialized we cannot have specialized you cannot have specialized they cannot have specialized	I cannot have been specializing you cannot have been specializing she cannot have been specializing we cannot have been specializing you cannot have been specializing they cannot have been specializing

Interrogative form

Simple form	V-ing form
can I specialize? can you specialize? can she specialize? can we specialize? can you specialize? can they specialize?	can I be specializing? can you be specializing? can she be specializing? can we be specializing? can you be specializing? can they be specializing?
Perfect	V-ing perfect
can I have specialized? can you have specialized? can she have specialized? can we have specialized? can you have specialized? can they have specialized?	can I have been specializing? can you have been specializing? can she have been specializing? can we have been specializing? can you have been specializing? can they have been specializing?

Interro-negative form

Simple form	V-ing form
can I not specialize? can you not specialize? can she not specialize? can we not specialize? can you not specialize? can they not specialize?	can I not be specializing? can you not be specializing? can she not be specializing? can we not be specializing? can you not be specializing? can they not be specializing?
Perfect	V-ing perfect
can I not have specialized? can you not have specialized? can she not have specialized? can we not have specialized? can you not have specialized? can they not have specialized?	can I not have been specializing? can you not have been specializing? can she not have been specializing? can we not have been specializing? can you not have been specializing? can they not have been specializing?