English verb conjugation
CAN SHELTER

Regular verb: shelter - sheltered - sheltered

Affirmation

Simple form	V-ing form
I can shelter you can shelter she can shelter we can shelter you can shelter they can shelter	I can be sheltering you can be sheltering she can be sheltering we can be sheltering you can be sheltering they can be sheltering
Perfect	V-ing perfect
I can have sheltered you can have sheltered she can have sheltered we can have sheltered you can have sheltered they can have sheltered	I can have been sheltering you can have been sheltering she can have been sheltering we can have been sheltering you can have been sheltering they can have been sheltering

Negation

Simple form	V-ing form
I cannot shelter you cannot shelter she cannot shelter we cannot shelter you cannot shelter they cannot shelter	I cannot be sheltering you cannot be sheltering she cannot be sheltering we cannot be sheltering you cannot be sheltering they cannot be sheltering
Perfect	V-ing perfect
I cannot have sheltered you cannot have sheltered she cannot have sheltered we cannot have sheltered you cannot have sheltered they cannot have sheltered	I cannot have been sheltering you cannot have been sheltering she cannot have been sheltering we cannot have been sheltering you cannot have been sheltering they cannot have been sheltering

Interrogative form

Simple form	V-ing form
can I shelter? can you shelter? can she shelter? can we shelter? can you shelter? can they shelter?	can I be sheltering? can you be sheltering? can she be sheltering? can we be sheltering? can you be sheltering? can they be sheltering?
Perfect	V-ing perfect
can I have sheltered? can you have sheltered? can she have sheltered? can we have sheltered? can you have sheltered? can they have sheltered?	can I have been sheltering? can you have been sheltering? can she have been sheltering? can we have been sheltering? can you have been sheltering? can they have been sheltering?

Interro-negative form

Simple form	V-ing form
can I not shelter? can you not shelter? can she not shelter? can we not shelter? can you not shelter? can they not shelter?	can I not be sheltering? can you not be sheltering? can she not be sheltering? can we not be sheltering? can you not be sheltering? can they not be sheltering?
Perfect	V-ing perfect
can I not have sheltered? can you not have sheltered? can she not have sheltered? can we not have sheltered? can you not have sheltered? can they not have sheltered?	can I not have been sheltering? can you not have been sheltering? can she not have been sheltering? can we not have been sheltering? can you not have been sheltering? can they not have been sheltering?