I can glean you can glean he can glean we can glean you can glean they can glean
V-ing form
I can be gleaning you can be gleaning he can be gleaning we can be gleaning you can be gleaning they can be gleaning
Perfect
I can have gleaned you can have gleaned he can have gleaned we can have gleaned you can have gleaned they can have gleaned
V-ing perfect
I can have been gleaning you can have been gleaning he can have been gleaning we can have been gleaning you can have been gleaning they can have been gleaning
Negation
Simple form
I can't glean you can't glean he can't glean we can't glean you can't glean they can't glean
V-ing form
I can't be gleaning you can't be gleaning he can't be gleaning we can't be gleaning you can't be gleaning they can't be gleaning
Perfect
I can't have gleaned you can't have gleaned he can't have gleaned we can't have gleaned you can't have gleaned they can't have gleaned
V-ing perfect
I can't have been gleaning you can't have been gleaning he can't have been gleaning we can't have been gleaning you can't have been gleaning they can't have been gleaning
Interrogative form
Simple form
can I glean? can you glean? can he glean? can we glean? can you glean? can they glean?
V-ing form
can I be gleaning? can you be gleaning? can he be gleaning? can we be gleaning? can you be gleaning? can they be gleaning?
Perfect
can I have gleaned? can you have gleaned? can he have gleaned? can we have gleaned? can you have gleaned? can they have gleaned?
V-ing perfect
can I have been gleaning? can you have been gleaning? can he have been gleaning? can we have been gleaning? can you have been gleaning? can they have been gleaning?
Interro-negative form
Simple form
can't I glean? can't you glean? can't he glean? can't we glean? can't you glean? can't they glean?
V-ing form
can't I be gleaning? can't you be gleaning? can't he be gleaning? can't we be gleaning? can't you be gleaning? can't they be gleaning?
Perfect
can't I have gleaned? can't you have gleaned? can't he have gleaned? can't we have gleaned? can't you have gleaned? can't they have gleaned?
V-ing perfect
can't I have been gleaning? can't you have been gleaning? can't he have been gleaning? can't we have been gleaning? can't you have been gleaning? can't they have been gleaning?