Conjugación del verbo inglés
CAN TIER

Verbo regular: tier - tiered - tiered

Afirmación

Forma simple	Forma con V-ing
I can tier you can tier she can tier we can tier you can tier they can tier	I can be tiering you can be tiering she can be tiering we can be tiering you can be tiering they can be tiering
Perfecto	Perfecto con V-ing
I can have tiered you can have tiered she can have tiered we can have tiered you can have tiered they can have tiered	I can have been tiering you can have been tiering she can have been tiering we can have been tiering you can have been tiering they can have been tiering

Negación

Forma simple	Forma con V-ing
I cannot tier you cannot tier she cannot tier we cannot tier you cannot tier they cannot tier	I cannot be tiering you cannot be tiering she cannot be tiering we cannot be tiering you cannot be tiering they cannot be tiering
Perfecto	Perfecto con V-ing
I cannot have tiered you cannot have tiered she cannot have tiered we cannot have tiered you cannot have tiered they cannot have tiered	I cannot have been tiering you cannot have been tiering she cannot have been tiering we cannot have been tiering you cannot have been tiering they cannot have been tiering

Forma interrogativa

Forma simple	Forma con V-ing
can I tier? can you tier? can she tier? can we tier? can you tier? can they tier?	can I be tiering? can you be tiering? can she be tiering? can we be tiering? can you be tiering? can they be tiering?
Perfecto	Perfecto con V-ing
can I have tiered? can you have tiered? can she have tiered? can we have tiered? can you have tiered? can they have tiered?	can I have been tiering? can you have been tiering? can she have been tiering? can we have been tiering? can you have been tiering? can they have been tiering?

Forma interro-negativa

Forma simple	Forma con V-ing
can I not tier? can you not tier? can she not tier? can we not tier? can you not tier? can they not tier?	can I not be tiering? can you not be tiering? can she not be tiering? can we not be tiering? can you not be tiering? can they not be tiering?
Perfecto	Perfecto con V-ing
can I not have tiered? can you not have tiered? can she not have tiered? can we not have tiered? can you not have tiered? can they not have tiered?	can I not have been tiering? can you not have been tiering? can she not have been tiering? can we not have been tiering? can you not have been tiering? can they not have been tiering?