Conjugación del verbo inglés
CAN SUSTAIN

Verbo regular: sustain - sustained - sustained

Afirmación

Forma simple	Forma con V-ing
I can sustain you can sustain he can sustain we can sustain you can sustain they can sustain	I can be sustaining you can be sustaining he can be sustaining we can be sustaining you can be sustaining they can be sustaining
Perfecto	Perfecto con V-ing
I can have sustained you can have sustained he can have sustained we can have sustained you can have sustained they can have sustained	I can have been sustaining you can have been sustaining he can have been sustaining we can have been sustaining you can have been sustaining they can have been sustaining

Negación

Forma simple	Forma con V-ing
I can't sustain you can't sustain he can't sustain we can't sustain you can't sustain they can't sustain	I can't be sustaining you can't be sustaining he can't be sustaining we can't be sustaining you can't be sustaining they can't be sustaining
Perfecto	Perfecto con V-ing
I can't have sustained you can't have sustained he can't have sustained we can't have sustained you can't have sustained they can't have sustained	I can't have been sustaining you can't have been sustaining he can't have been sustaining we can't have been sustaining you can't have been sustaining they can't have been sustaining

Forma interrogativa

Forma simple	Forma con V-ing
can I sustain? can you sustain? can he sustain? can we sustain? can you sustain? can they sustain?	can I be sustaining? can you be sustaining? can he be sustaining? can we be sustaining? can you be sustaining? can they be sustaining?
Perfecto	Perfecto con V-ing
can I have sustained? can you have sustained? can he have sustained? can we have sustained? can you have sustained? can they have sustained?	can I have been sustaining? can you have been sustaining? can he have been sustaining? can we have been sustaining? can you have been sustaining? can they have been sustaining?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I sustain? can't you sustain? can't he sustain? can't we sustain? can't you sustain? can't they sustain?	can't I be sustaining? can't you be sustaining? can't he be sustaining? can't we be sustaining? can't you be sustaining? can't they be sustaining?
Perfecto	Perfecto con V-ing
can't I have sustained? can't you have sustained? can't he have sustained? can't we have sustained? can't you have sustained? can't they have sustained?	can't I have been sustaining? can't you have been sustaining? can't he have been sustaining? can't we have been sustaining? can't you have been sustaining? can't they have been sustaining?