Conjugación del verbo inglés
CAN IMPROVE

Verbo regular: improve - improved - improved

Afirmación

Forma simple	Forma con V-ing
I can improve you can improve she can improve we can improve you can improve they can improve	I can be improving you can be improving she can be improving we can be improving you can be improving they can be improving
Perfecto	Perfecto con V-ing
I can have improved you can have improved she can have improved we can have improved you can have improved they can have improved	I can have been improving you can have been improving she can have been improving we can have been improving you can have been improving they can have been improving

Negación

Forma simple	Forma con V-ing
I cannot improve you cannot improve she cannot improve we cannot improve you cannot improve they cannot improve	I cannot be improving you cannot be improving she cannot be improving we cannot be improving you cannot be improving they cannot be improving
Perfecto	Perfecto con V-ing
I cannot have improved you cannot have improved she cannot have improved we cannot have improved you cannot have improved they cannot have improved	I cannot have been improving you cannot have been improving she cannot have been improving we cannot have been improving you cannot have been improving they cannot have been improving

Forma interrogativa

Forma simple	Forma con V-ing
can I improve? can you improve? can she improve? can we improve? can you improve? can they improve?	can I be improving? can you be improving? can she be improving? can we be improving? can you be improving? can they be improving?
Perfecto	Perfecto con V-ing
can I have improved? can you have improved? can she have improved? can we have improved? can you have improved? can they have improved?	can I have been improving? can you have been improving? can she have been improving? can we have been improving? can you have been improving? can they have been improving?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not improve? can you not improve? can she not improve? can we not improve? can you not improve? can they not improve?	can I not be improving? can you not be improving? can she not be improving? can we not be improving? can you not be improving? can they not be improving?
Perfecto	Perfecto con V-ing
can I not have improved? can you not have improved? can she not have improved? can we not have improved? can you not have improved? can they not have improved?	can I not have been improving? can you not have been improving? can she not have been improving? can we not have been improving? can you not have been improving? can they not have been improving?