I can grease you can grease he can grease we can grease you can grease they can grease
Forma con V-ing
I can be greasing you can be greasing he can be greasing we can be greasing you can be greasing they can be greasing
Perfecto
I can have greased you can have greased he can have greased we can have greased you can have greased they can have greased
Perfecto con V-ing
I can have been greasing you can have been greasing he can have been greasing we can have been greasing you can have been greasing they can have been greasing
Negación
Forma simple
I can't grease you can't grease he can't grease we can't grease you can't grease they can't grease
Forma con V-ing
I can't be greasing you can't be greasing he can't be greasing we can't be greasing you can't be greasing they can't be greasing
Perfecto
I can't have greased you can't have greased he can't have greased we can't have greased you can't have greased they can't have greased
Perfecto con V-ing
I can't have been greasing you can't have been greasing he can't have been greasing we can't have been greasing you can't have been greasing they can't have been greasing
Forma interrogativa
Forma simple
can I grease? can you grease? can he grease? can we grease? can you grease? can they grease?
Forma con V-ing
can I be greasing? can you be greasing? can he be greasing? can we be greasing? can you be greasing? can they be greasing?
Perfecto
can I have greased? can you have greased? can he have greased? can we have greased? can you have greased? can they have greased?
Perfecto con V-ing
can I have been greasing? can you have been greasing? can he have been greasing? can we have been greasing? can you have been greasing? can they have been greasing?
Forma interro-negativa
Forma simple
can't I grease? can't you grease? can't he grease? can't we grease? can't you grease? can't they grease?
Forma con V-ing
can't I be greasing? can't you be greasing? can't he be greasing? can't we be greasing? can't you be greasing? can't they be greasing?
Perfecto
can't I have greased? can't you have greased? can't he have greased? can't we have greased? can't you have greased? can't they have greased?
Perfecto con V-ing
can't I have been greasing? can't you have been greasing? can't he have been greasing? can't we have been greasing? can't you have been greasing? can't they have been greasing?