can lecture
Regular verb: lecture - lectured- lectured

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can lecture
you can lecture
she can lecture
we can lecture
you can lecture
they can lecture 	I can be lecturing
you can be lecturing
she can be lecturing
we can be lecturing
you can be lecturing
they can be lecturing	I can have lectured
you can have lectured
she can have lectured
we can have lectured
you can have lectured
they can have lectured	I can have been lecturing
you can have been lecturing
she can have been lecturing
we can have been lecturing
you can have been lecturing
they can have been lecturing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot lecture
you cannot lecture
she cannot lecture
we cannot lecture
you cannot lecture
they cannot lecture 	I cannot be lecturing
you cannot be lecturing
she cannot be lecturing
we cannot be lecturing
you cannot be lecturing
they cannot be lecturing	I cannot have lectured
you cannot have lectured
she cannot have lectured
we cannot have lectured
you cannot have lectured
they cannot have lectured	I cannot have been lecturing
you cannot have been lecturing
she cannot have been lecturing
we cannot have been lecturing
you cannot have been lecturing
they cannot have been lecturing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I lecture?
can you lecture?
can she lecture?
can we lecture?
can you lecture?
can they lecture? 	can I be lecturing?
can you be lecturing?
can she be lecturing?
can we be lecturing?
can you be lecturing?
can they be lecturing? 	can I have lectured?
can you have lectured?
can she have lectured?
can we have lectured?
can you have lectured?
can they have lectured? 	can I have been lecturing?
can you have been lecturing?
can she have been lecturing?
can we have been lecturing?
can you have been lecturing?
can they have been lecturing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not lecture?
can you not lecture?
can she not lecture?
can we not lecture?
can you not lecture?
can they not lecture? 	can I not be lecturing?
can you not be lecturing?
can she not be lecturing?
can we not be lecturing?
can you not be lecturing?
can they not be lecturing? 	can I not have lectured?
can you not have lectured?
can she not have lectured?
can we not have lectured?
can you not have lectured?
can they not have lectured? 	can I not have been lecturing?
can you not have been lecturing?
can she not have been lecturing?
can we not have been lecturing?
can you not have been lecturing?
can they not have been lecturing?