can square
Verbo regular: square - squared- squared

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can square
you can square
she can square
we can square
you can square
they can square 	I can be squaring
you can be squaring
she can be squaring
we can be squaring
you can be squaring
they can be squaring	I can have squared
you can have squared
she can have squared
we can have squared
you can have squared
they can have squared	I can have been squaring
you can have been squaring
she can have been squaring
we can have been squaring
you can have been squaring
they can have been squaring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot square
you cannot square
she cannot square
we cannot square
you cannot square
they cannot square 	I cannot be squaring
you cannot be squaring
she cannot be squaring
we cannot be squaring
you cannot be squaring
they cannot be squaring	I cannot have squared
you cannot have squared
she cannot have squared
we cannot have squared
you cannot have squared
they cannot have squared	I cannot have been squaring
you cannot have been squaring
she cannot have been squaring
we cannot have been squaring
you cannot have been squaring
they cannot have been squaring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I square?
can you square?
can she square?
can we square?
can you square?
can they square? 	can I be squaring?
can you be squaring?
can she be squaring?
can we be squaring?
can you be squaring?
can they be squaring? 	can I have squared?
can you have squared?
can she have squared?
can we have squared?
can you have squared?
can they have squared? 	can I have been squaring?
can you have been squaring?
can she have been squaring?
can we have been squaring?
can you have been squaring?
can they have been squaring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not square?
can you not square?
can she not square?
can we not square?
can you not square?
can they not square? 	can I not be squaring?
can you not be squaring?
can she not be squaring?
can we not be squaring?
can you not be squaring?
can they not be squaring? 	can I not have squared?
can you not have squared?
can she not have squared?
can we not have squared?
can you not have squared?
can they not have squared? 	can I not have been squaring?
can you not have been squaring?
can she not have been squaring?
can we not have been squaring?
can you not have been squaring?
can they not have been squaring?