could glean
Regular verb: glean - gleaned- gleaned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could glean
you could glean
she could glean
we could glean
you could glean
they could glean 	I could be gleaning
you could be gleaning
she could be gleaning
we could be gleaning
you could be gleaning
they could be gleaning	I could have gleaned
you could have gleaned
she could have gleaned
we could have gleaned
you could have gleaned
they could have gleaned	I could have been gleaning
you could have been gleaning
she could have been gleaning
we could have been gleaning
you could have been gleaning
they could have been gleaning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't glean
you couldn't glean
she couldn't glean
we couldn't glean
you couldn't glean
they couldn't glean 	I couldn't be gleaning
you couldn't be gleaning
she couldn't be gleaning
we couldn't be gleaning
you couldn't be gleaning
they couldn't be gleaning	I couldn't have gleaned
you couldn't have gleaned
she couldn't have gleaned
we couldn't have gleaned
you couldn't have gleaned
they couldn't have gleaned	I couldn't have been gleaning
you couldn't have been gleaning
she couldn't have been gleaning
we couldn't have been gleaning
you couldn't have been gleaning
they couldn't have been gleaning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I glean?
could you glean?
could she glean?
could we glean?
could you glean?
could they glean? 	could I be gleaning?
could you be gleaning?
could she be gleaning?
could we be gleaning?
could you be gleaning?
could they be gleaning? 	could I have gleaned?
could you have gleaned?
could she have gleaned?
could we have gleaned?
could you have gleaned?
could they have gleaned? 	could I have been gleaning?
could you have been gleaning?
could she have been gleaning?
could we have been gleaning?
could you have been gleaning?
could they have been gleaning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I glean?
couldn't you glean?
couldn't she glean?
couldn't we glean?
couldn't you glean?
couldn't they glean? 	couldn't I be gleaning?
couldn't you be gleaning?
couldn't she be gleaning?
couldn't we be gleaning?
couldn't you be gleaning?
couldn't they be gleaning? 	couldn't I have gleaned?
couldn't you have gleaned?
couldn't she have gleaned?
couldn't we have gleaned?
couldn't you have gleaned?
couldn't they have gleaned? 	couldn't I have been gleaning?
couldn't you have been gleaning?
couldn't she have been gleaning?
couldn't we have been gleaning?
couldn't you have been gleaning?
couldn't they have been gleaning?