can grubstake
Verbo regular: grubstake - grubstaked- grubstaked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can grubstake
you can grubstake
he can grubstake
we can grubstake
you can grubstake
they can grubstake 	I can be grubstaking
you can be grubstaking
he can be grubstaking
we can be grubstaking
you can be grubstaking
they can be grubstaking	I can have grubstaked
you can have grubstaked
he can have grubstaked
we can have grubstaked
you can have grubstaked
they can have grubstaked	I can have been grubstaking
you can have been grubstaking
he can have been grubstaking
we can have been grubstaking
you can have been grubstaking
they can have been grubstaking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot grubstake
you cannot grubstake
he cannot grubstake
we cannot grubstake
you cannot grubstake
they cannot grubstake 	I cannot be grubstaking
you cannot be grubstaking
he cannot be grubstaking
we cannot be grubstaking
you cannot be grubstaking
they cannot be grubstaking	I cannot have grubstaked
you cannot have grubstaked
he cannot have grubstaked
we cannot have grubstaked
you cannot have grubstaked
they cannot have grubstaked	I cannot have been grubstaking
you cannot have been grubstaking
he cannot have been grubstaking
we cannot have been grubstaking
you cannot have been grubstaking
they cannot have been grubstaking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I grubstake?
can you grubstake?
can he grubstake?
can we grubstake?
can you grubstake?
can they grubstake? 	can I be grubstaking?
can you be grubstaking?
can he be grubstaking?
can we be grubstaking?
can you be grubstaking?
can they be grubstaking? 	can I have grubstaked?
can you have grubstaked?
can he have grubstaked?
can we have grubstaked?
can you have grubstaked?
can they have grubstaked? 	can I have been grubstaking?
can you have been grubstaking?
can he have been grubstaking?
can we have been grubstaking?
can you have been grubstaking?
can they have been grubstaking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not grubstake?
can you not grubstake?
can he not grubstake?
can we not grubstake?
can you not grubstake?
can they not grubstake? 	can I not be grubstaking?
can you not be grubstaking?
can he not be grubstaking?
can we not be grubstaking?
can you not be grubstaking?
can they not be grubstaking? 	can I not have grubstaked?
can you not have grubstaked?
can he not have grubstaked?
can we not have grubstaked?
can you not have grubstaked?
can they not have grubstaked? 	can I not have been grubstaking?
can you not have been grubstaking?
can he not have been grubstaking?
can we not have been grubstaking?
can you not have been grubstaking?
can they not have been grubstaking?