
Verbo irregular: tread - trod - trod, trodden
| Presente | Presente continuo | Pretérito | Pretérito continuo | 
| I tread you tread he treads we tread you tread they tread | I am treading you are treading he is treading we are treading you are treading they are treading | I trod you trod he trod we trod you trod they trod | I was treading you were treading he was treading we were treading you were treading they were treading | 
| Presente perfecto | Presente perfecto continuo | Pluscuamperfecto | Pluscuamperfecto continuo | 
| I have trod, trodden you have trod, trodden he has trod, trodden we have trod, trodden you have trod, trodden they have trod, trodden | I have been treading you have been treading he has been treading we have been treading you have been treading they have been treading | I had trod, trodden you had trod, trodden he had trod, trodden we had trod, trodden you had trod, trodden they had trod, trodden | I had been treading you had been treading he had been treading we had been treading you had been treading they had been treading | 
| Futuro simple | Futuro continuo | Futuro perfecto | Futuro perfecto contínuo | 
| I will tread you will tread he will tread we will tread you will tread they will tread | I will be treading you will be treading he will be treading we will be treading you will be treading they will be treading | I will have trod, trodden you will have trod, trodden he will have trod, trodden we will have trod, trodden you will have trod, trodden they will have trod, trodden | I will have been treading you will have been treading he will have been treading we will have been treading you will have been treading they will have been treading | 
| Presente | Presente continuo | Passado | Passado continuo | 
| I would tread you would tread he would tread we would tread you would tread they would tread | I would be treading you would be treading he would be treading we would be treading you would be treading they would be treading | I would have trod, trodden you would have trod, trodden he would have trod, trodden we would have trod, trodden you would have trod, trodden they would have trod, trodden | I would have been treading you would have been treading he would have been treading we would have been treading you would have been treading they would have been treading | 
| Infinitivo | Imperativo | 
| Infinitivo | Imperativo | ||
| to tread | tread Let's tread tread | 
| Presente | Passado | ||
| treading | trod, trodden |