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 can't shelter you can't shelter she can't shelter we can't shelter you can't shelter they can't shelter	I can't be sheltering you can't be sheltering she can't be sheltering we can't be sheltering you can't be sheltering they can't be sheltering
Perfect	V-ing perfect
I can't have sheltered you can't have sheltered she can't have sheltered we can't have sheltered you can't have sheltered they can't have sheltered	I can't have been sheltering you can't have been sheltering she can't have been sheltering we can't have been sheltering you can't have been sheltering they can't 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't I shelter? can't you shelter? can't she shelter? can't we shelter? can't you shelter? can't they shelter?	can't I be sheltering? can't you be sheltering? can't she be sheltering? can't we be sheltering? can't you be sheltering? can't they be sheltering?
Perfect	V-ing perfect
can't I have sheltered? can't you have sheltered? can't she have sheltered? can't we have sheltered? can't you have sheltered? can't they have sheltered?	can't I have been sheltering? can't you have been sheltering? can't she have been sheltering? can't we have been sheltering? can't you have been sheltering? can't they have been sheltering?