I trail you trail he trails we trail you trail they trail
Present continuous
I am trailing you are trailing he is trailing we are trailing you are trailing they are trailing
Preterite
I trailed you trailed he trailed we trailed you trailed they trailed
Preterite continuous
I was trailing you were trailing he was trailing we were trailing you were trailing they were trailing
Present perfect
I have trailed you have trailed he has trailed we have trailed you have trailed they have trailed
Present perfect continuous
I have been trailing you have been trailing he has been trailing we have been trailing you have been trailing they have been trailing
Pluperfect
I had trailed you had trailed he had trailed we had trailed you had trailed they had trailed
Pluperfect continuous
I had been trailing you had been trailing he had been trailing we had been trailing you had been trailing they had been trailing
Future
I will trail you will trail he will trail we will trail you will trail they will trail
Future continuous
I will be trailing you will be trailing he will be trailing we will be trailing you will be trailing they will be trailing
Future perfect
I will have trailed you will have trailed he will have trailed we will have trailed you will have trailed they will have trailed
Future perfect continuous
I will have been trailing you will have been trailing he will have been trailing we will have been trailing you will have been trailing they will have been trailing
Conditional
Present
I would trail you would trail he would trail we would trail you would trail they would trail
Present continuous
I would be trailing you would be trailing he would be trailing we would be trailing you would be trailing they would be trailing
Past
I would have trailed you would have trailed he would have trailed we would have trailed you would have trailed they would have trailed
Past continuous
I would have been trailing you would have been trailing he would have been trailing we would have been trailing you would have been trailing they would have been trailing